#fishdings angler

[worstutfanonthingpoll]

This is why I didn’t put up the polls today

My Masterpiece

[fishdings]

Decided to split the Fishdings Au into three main parts:

SPIRIT PHONE ERA

I'm a lemon demon fan, and so am making a storyline of Fishdings teen and young adulthood with songs from Spirit Phone (and some others).

For example, touch tone telephone is when he had a conspiracy theory phase and wouldn't stop calling the king about it. This got him on the "never hire" list. He only got off the list when he went on to draft plans for the core.

As your father I expressly forbid it is his relationship with his father. Knife fight is how he met River Person. Cabinet man was a stupid experiment of his. He was fine afterwards, amazingly.

I will probably never animate this, but feel free to imagine my vision lol.

Oh also Fishdings has a bad mullet this entire era.

ASK BLOG ERA

Eventually @sans-au-war-ii and I will make an ask blog that will basically cover the lore from the pinned post. This is Undyne's childhood, from when she's born to when she's 24, aka when Revel and Frisk fall into the underground

FANFICTION ERA

The fanfictions me and sans au war will eventually write, telling the story of Revel and Frisk's journey through the underground.

There will be two fics: a geno one and a pacifist one. Geno is Frisk's POV and Pacifist is Revel's

(FOR THOSE WHO DON'T KNOW, Revel is the kindness soul, she falls with Frisk and uses all pronouns)

Yeah that's all I have to say here really lol

[worstutfanonthingpoll]

Fishdings and Riverperson (they r friends)

[fishdings]

Please explain everything about this AU I know you'll like it

:D!!!

Okay, Fishdings is basically an AU where Gaster is Undyne's dad and his name is Fishdings Angler!

He's still the royal scientist though, he works for Asgore and specialises in multiversal studies, coming up with ways to bust out of the underground, the CORE, SOULS and whatever mechanical bullshit the adhd mindset decides he should build today.

The canon Gaster followers are, of course, his coworkers, as are the Goners.

He had a sister named Shelley (a geologist) who reproduced via asexual reproduction twice. She had two daughters who she named Shyra and Shyren. Sadly, not long after she created Shyren, she was killed by the JUSTICE DETERMINATION child, Caper.

Oh also here's a list of the fallen human children and their soul powers:

Chara: Determination (i think)

Idyll: Patience

Antic: Bravery

Spice: Integrity

Llark: Perseverance

Caper: Justice

Revel: Kindness

Frisk: Nothing (get rekt, despite everything u continue to just be urself)

Despite mourning his sister, Fishdings was also jealous that she had children and decided he should attempt to carry out something similar! He set up in the lab basement a là powerpuff girls, and combined the powers of HIMSELF*, RAW COSMOS AND GOLDFISH CRACKERS! He was content with this mixture, but OH NO! he accidentally knocked in a flask of LIQUID JUSTICE DETERMINATION, a lá powerpuff girls! (like I said, he was studying souls)

*(he can use magic to shift between having legs and having a fish tail, and mid shift it's goopy. He used a lump of this goop)

From this mixture a five year old child sprung fully formed and immediately attempted to fight her creator. And won. Fishdings was very very proud of his five minute old daughter and immediately took her to his boss so she coukd get lessons in combat. While she attempted (and failed) to beat the living shit out of Asgore, he came up with the perfect name: UNDYNE.

Once Undyne got too tired to keep attempting to fight, Fishdings decided to take her to see her relatives. They took the ferry (obviously) and Undyne got to meet her honourary uncleaunt Riverperson.

Riverperson has legal custody of Shyra and Shyren (they and Shelley were inseparable when she was alive), but as they are busy ferrying people around half the day (and trying to build a bigger boat) they mostly leave the girls in the care of the Blooks.

Undyne meets her cousins and their babysitters: Maddy, Blankstablook**, Napstablook and Hapstablook. Maddy, the eldest at 13, is the only one who actually babysits (the others are no help) but all of the ghosts insist they babysit too.

** Blankstablook is the ruins dummy

Shyren, one, is excited to meet her new cousin and they are fast friends. They frequently run around the house together screaming. Shyren is a very musical baby and Undyne just likes yelling.

Shyra, six, is... less fond of Undyne. As her mother was killed by the justice child and Undyne is made of justice determination, she resents her new cousin a little. She eventually warms up to her though, and they grow up very close.

Shyra and Shyren live in the house that we know in the game as Undyne's, in Waterfall. The Blooks live literally right next door, making babysitting convenient. Undyne spends half her childhood here when Fishdings is busy with science stuff.

Undyne and her dad live in the top floor of the lab. It's really just a bed crammed into a corner with various photographs pinned to the walls around it, but there's a tv in the basement. So. Undyne is free to run around the lab as long as she doesn't touch anything dangerous. The other scientists become quite fond of her over time too.

A few years later, Fishdings decides that Undyne is getting too old to live in the lab with him, so they buy a house in Snowdin for Shyra, Shyrup*** and Riverperson and move into their old place. The Shy sisters are okay with this! Snowdin has way more kids their age, and there's a schoolhouse so they aren't alone at home all day. The Blooks are happy to make the trip to visit sometimes too.

*** Shyren discovered they're non binary and so is Shyrup now

When Undyne's 15 her dad falls into the CORE. How? Not sure yet. Anyway, Undyne is so filled with JUSTICE DETERMINATION her hair glows gold and she vows to find him. It takes a few years, but they eventually figure out he's trapped in the void, build a portal and send a now 17 year old Undyne in to get him out.

The only problem is Fishdings is now liquid. He lives in a vat for a while, until he's eventually solid enough (slime consistency) to move around on his own. He immediately commissions a giant fish tank on the top floor of the lab, fitted with the void portal in the corner and takes to doing multiversal/void research in there.

The other scientists are relocated to a bigger lab in New Home so Fishdings can leave his slime and half built portals all over the damn place but they still visit sometimes! Fishdings visits the other lab sometimes too but mostly stays in a fishbowl on wheels so to not drip on the carpet.

Another year or so later, Fishdings gets word of a young scientist named Alphys who built a fabulous robot, that now has his own tv show. He arranges a meeting with her and hires her on the spot, giving her free run of the basement for whatever science related shit she pleases. He allowed her to use the basement because he wasn't using it, definitely not because he saw Undyne making heart eyes at the lizard monster...

Not long after that, Shyra "falls down". Fishdings and Undyne are devastated, and Alphys vows to find a way to revive Shyra and other monsters who have suffered the same fate.

The amalgam incidents carry out as they did in canon, except this time Fishdings finds out about it. It's difficult to hide four (five? six??) goop monsters in the basement when you have another goop monster two floors up who likes to pop down sometimes (nosy).

He encourages her to come forward about it, so the Amalgamates are returned to their overjoyed (albeit slightly confused) families. Undyne and Shyrup are, of course, overjoyed to have Shyra back! Except now she's also Moldbygg and Aaron, and goes by Baked Bread.

Two humans fall into the underground when Undyne turns 24. Their names are Revel and Frisk. Will they kill everyone or will they be pacifists? Depends which fanfic Killer and I will eventually write you read...

...

So yah. Other than Gaster being a fish and present and Undyne's dad and the amalgams being free and sans not existing and Shyrup and Baked Bread being very very relevant, not much else changes.

There are aesthetic changes ofc: Fishdings puts fishy motifs into everything he creates, and being head scientist means the rest of the Underground take to using fishy motifs in their everyday lives.

Fishdings made the puzzles in the ruins (he used to go down there to visit Toriel before she decided to close it off altogether), so they also look fishy. His puzzle skillz inspired Shyrup to make a few music themed ones of her own in Snowdin. Fishdings made a lot of the puzzles in Waterfall and Hotland too so again, FISHY MOTIFS.

Mettaton is Mermatriton bc he and Alphys were too inspired by the overabundance of fishiness.

Um that's all I can think of to say for now, oh expect in the fanfictions Killer and I will eventually write, the SOUL controls Revel on pacifist and Frisk on geno. So yeah!

Sorry this took a few days for me to answer lol, had to spent a while typing.

[fishdings]

Enjoy the early LORE lol

Hi I'm bored u wanna talk about fishdings to me?

GASP!

Okay so basically, for those who don't know, Fishdings is an au where Gaster is Undyne's dad and Sans doesn't exist. Papyrus is there, but only in a small fight in Waterfall that replaces Shyren's because SHYREN AND LEMON BREAD (although she's called Baked Bread here) REPLACE SANS AND PAPYRUS

So Fishdings Angler had a sister named Shelley who reproduced via Mitosis as you do and decided he too should make a child. Shelley got killed by the Justice child tho. Rip. She left her daughters in the care of their honourary auntcle, Riverperson.

To make his wonderful child, Fishdings combined RAW COSMIC MATTER, A LUMP OF HIMSELF (he can split his tail into legs and can grab off lumps of himself mid split, so thats how) AND GOLDFISH CRACKERS. But OH NO! He accidentally knocked a beaker of JUSTICE DETERMINATION into the mix! (He was studying it)

The child sprung out of the vat a fully formed five year old and immediately beat the shit out of him. He was very impressed at his NEW DAUGHTER'S STRENGTH and immediately took her to the king for training! While she was jabbing at Asgore with a stick, he came up with a wonderful name for her: UNDYNE ANGLER!

Once the newborn fish child got too tired to keep attempting a royal assassination, Fishdings took her to visit her extended family in Waterfall. Riverperson immediately adored their new honourary niece (obviously).

Shyra, six, didn't like Undyne that much at first because she's made of Justice Determination: the same justice determination used by some child to kill her mother. She eventually warmed up to her though, and the two grew up very close.

Shyren, one, loved Undyne from the start and the two would frequently run around the house together shrieking at the tops of their lungs.

Due to Fishdings being busy with SCIENCE and Riverperson with ferrying everyone around on a plank of wood (and also trying to built an actual boat), the Blooks would often babysit the fish children.

Maddy, thirteen is HEAD BABYSITTER! She's also the only one who does any work around here. It's thanks to her that the house hasn't blown up yet. Blanksta, eleven, is no help. They spend all their time in the ruins or on the farm. They are the ruins dummy.

Napsta, ten, is TOO STRESSED to help much. They like playing with Shyren though. Musical baby. They make sick beats together despite being little kids. Hapsta, eight, is even less help than Blanksta in the way that HE CAUSES PROBLEMS ON PURPOSE.

When Undyne is not hanging out with her cousins and the Blooks, she spends time in the lab with her father. The other scientists don't mind her running around the place as long as she's careful.

She also continues training with Asgore! Even though she has webbed hands, she's still pretty good with a spear. She can now beat the ass of anyone in the underground. Except maybe Asgore himself.

She lives on the top floor with her dad for awhile, but when she gets a bit older they move into Shyra and Shyren's place, and buy them a house in Snowdin. By then Shyra's twelve or thirteen so her and Shyren are okay alone most of the day. Besides, there are loads of other kids in Snowdin so they're happy enough. The Blooks still come visit sometimes.

That's all the early Fishdings lore, I think. Nothing else major happens til Undyne's fifteen anyway.

[worstutfanonthingpoll]

Hi I'm bored u wanna talk about fishdings to me?

GASP!

Okay so basically, for those who don't know, Fishdings is an au where Gaster is Undyne's dad and Sans doesn't exist. Papyrus is there, but only in a small fight in Waterfall that replaces Shyren's because SHYREN AND LEMON BREAD (although she's called Baked Bread here) REPLACE SANS AND PAPYRUS

So Fishdings Angler had a sister named Shelley who reproduced via Mitosis as you do and decided he too should make a child. Shelley got killed by the Justice child tho. Rip. She left her daughters in the care of their honourary auntcle, Riverperson.

To make his wonderful child, Fishdings combined RAW COSMIC MATTER, A LUMP OF HIMSELF (he can split his tail into legs and can grab off lumps of himself mid split, so thats how) AND GOLDFISH CRACKERS. But OH NO! He accidentally knocked a beaker of JUSTICE DETERMINATION into the mix! (He was studying it)

The child sprung out of the vat a fully formed five year old and immediately beat the shit out of him. He was very impressed at his NEW DAUGHTER'S STRENGTH and immediately took her to the king for training! While she was jabbing at Asgore with a stick, he came up with a wonderful name for her: UNDYNE ANGLER!

Once the newborn fish child got too tired to keep attempting a royal assassination, Fishdings took her to visit her extended family in Waterfall. Riverperson immediately adored their new honourary niece (obviously).

Shyra, six, didn't like Undyne that much at first because she's made of Justice Determination: the same justice determination used by some child to kill her mother. She eventually warmed up to her though, and the two grew up very close.

Shyren, one, loved Undyne from the start and the two would frequently run around the house together shrieking at the tops of their lungs.

Due to Fishdings being busy with SCIENCE and Riverperson with ferrying everyone around on a plank of wood (and also trying to built an actual boat), the Blooks would often babysit the fish children.

Maddy, thirteen is HEAD BABYSITTER! She's also the only one who does any work around here. It's thanks to her that the house hasn't blown up yet. Blanksta, eleven, is no help. They spend all their time in the ruins or on the farm. They are the ruins dummy.

Napsta, ten, is TOO STRESSED to help much. They like playing with Shyren though. Musical baby. They make sick beats together despite being little kids. Hapsta, eight, is even less help than Blanksta in the way that HE CAUSES PROBLEMS ON PURPOSE.

When Undyne is not hanging out with her cousins and the Blooks, she spends time in the lab with her father. The other scientists don't mind her running around the place as long as she's careful.

She also continues training with Asgore! Even though she has webbed hands, she's still pretty good with a spear. She can now beat the ass of anyone in the underground. Except maybe Asgore himself.

She lives on the top floor with her dad for awhile, but when she gets a bit older they move into Shyra and Shyren's place, and buy them a house in Snowdin. By then Shyra's twelve or thirteen so her and Shyren are okay alone most of the day. Besides, there are loads of other kids in Snowdin so they're happy enough. The Blooks still come visit sometimes.

That's all the early Fishdings lore, I think. Nothing else major happens til Undyne's fifteen anyway.

[worstutfanonthingpoll]

Wow glad no one exploded

Sorry I took forever lol

With Legs and Without Legs

Also, Lore:

Lives in a giant fish tank in the Lab post CORE. It has a portal to the void in it

Transmasc king (because my brother claims only female angler fish have the light thingy)

Made Undyne out of himself, raw cosmos and goldfish crackers but accidentally knocked some determination from the justice soul into the mixture, á la powerpuff girls

Fishdings Undyne sprung out as a fully formed five year old and immediately attempted to fight him

She has red hair because of the goldfish crackers

Fishdings could fuse his legs together into a tail, pre CORE

Guys guys wanna see my Fishdings pre-CORE designs???

[fishdings]

I love this sm will turn the spirit phone into fish dings someday

This is why I didn’t put up the polls today

My Masterpiece

[retired-for-now]

OMG HIIII

Also. Two trucks. Is- is that the FishKings era?

Decided to split the Fishdings Au into three main parts:

SPIRIT PHONE ERA

I'm a lemon demon fan, and so am making a storyline of Fishdings teen and young adulthood with songs from Spirit Phone (and some others).

For example, touch tone telephone is when he had a conspiracy theory phase and wouldn't stop calling the king about it. This got him on the "never hire" list. He only got off the list when he went on to draft plans for the core.

As your father I expressly forbid it is his relationship with his father. Knife fight is how he met River Person. Cabinet man was a stupid experiment of his. He was fine afterwards, amazingly.

I will probably never animate this, but feel free to imagine my vision lol.

Oh also Fishdings has a bad mullet this entire era.

ASK BLOG ERA

Eventually @sans-au-war-ii and I will make an ask blog that will basically cover the lore from the pinned post. This is Undyne's childhood, from when she's born to when she's 24, aka when Revel and Frisk fall into the underground

FANFICTION ERA

The fanfictions me and sans au war will eventually write, telling the story of Revel and Frisk's journey through the underground.

There will be two fics: a geno one and a pacifist one. Geno is Frisk's POV and Pacifist is Revel's

(FOR THOSE WHO DON'T KNOW, Revel is the kindness soul, she falls with Frisk and uses all pronouns)

Yeah that's all I have to say here really lol

[selfishshippers-system128]

How DARE you forget the fact that theres a neon blue soul mode of music that makes you move to the beat!?!?! /lh

Also also- The fight with Shyrup is a Fnf style rap battle because we have creative liberty and we are Smart TM.

-Mod Killz!

Please explain everything about this AU I know you'll like it

:D!!!

Okay, Fishdings is basically an AU where Gaster is Undyne's dad and his name is Fishdings Angler!

He's still the royal scientist though, he works for Asgore and specialises in multiversal studies, coming up with ways to bust out of the underground, the CORE, SOULS and whatever mechanical bullshit the adhd mindset decides he should build today.

The canon Gaster followers are, of course, his coworkers, as are the Goners.

He had a sister named Shelley (a geologist) who reproduced via mitosis twice. She had two daughters who she named Shyra and Shyren. Sadly, not long after she created Shyren, she was killed by the JUSTICE DETERMINATION child, Caper.

Oh also here's a list of the fallen human children and their soul powers:

Chara: Determination (i think)

Idyll: Patience

Antic: Bravery

Spice: Integrity

Llark: Perseverance

Caper: Justice

Revel: Kindness

Frisk: Nothing (get rekt, despite everything u continue to just be urself)

Despite mourning his sister, Fishdings was also jealous that she had children and decided he should attempt to carry out something similar! He set up in the lab basement a là powerpuff girls, and combined the powers of HIMSELF*, RAW COSMOS AND GOLDFISH CRACKERS! He was content with this mixture, but OH NO! he accidentally knocked in a flask of LIQUID JUSTICE DETERMINATION, a lá powerpuff girls! (like I said, he was studying souls)

*(he can use magic to shift between having legs and having a fish tail, and mid shift it's goopy. He used a lump of this goop)

From this mixture a five year old child sprung fully formed and immediately attempted to fight her creator. And won. Fishdings was very very proud of his five minute old daughter and immediately took her to his boss so she coukd get lessons in combat. While she attempted (and failed) to beat the living shit out of Asgore, he came up with the perfect name: UNDYNE.

Once Undyne got too tired to keep attempting to fight, Fishdings decided to take her to see her relatives. They took the ferry (obviously) and Undyne got to meet her honourary uncleaunt Riverperson.

Riverperson has legal custody of Shyra and Shyren (they and Shelley were inseparable when she was alive), but as they are busy ferrying people around half the day (and trying to build a bigger boat) they mostly leave the girls in the care of the Blooks.

Undyne meets her cousins and their babysitters: Maddy, Blankstablook**, Napstablook and Hapstablook. Maddy, the eldest at 13, is the only one who actually babysits (the others are no help) but all of the ghosts insist they babysit too.

** Blankstablook is the ruins dummy

Shyren, one, is excited to meet her new cousin and they are fast friends. They frequently run around the house together screaming. Shyren is a very musical baby and Undyne just likes yelling.

Shyra, six, is... less fond of Undyne. As her mother was killed by the justice child and Undyne is made of justice determination, she resents her new cousin a little. She eventually warms up to her though, and they grow up very close.

Shyra and Shyren live in the house that we know in the game as Undyne's, in Waterfall. The Blooks live literally right next door, making babysitting convenient. Undyne spends half her childhood here when Fishdings is busy with science stuff.

Undyne and her dad live in the top floor of the lab. It's really just a bed crammed into a corner with various photographs pinned to the walls around it, but there's a tv in the basement. So. Undyne is free to run around the lab as long as she doesn't touch anything dangerous. The other scientists become quite fond of her over time too.

A few years later, Fishdings decides that Undyne is getting too old to live in the lab with him, so they buy a house in Snowdin for Shyra, Shyrup*** and Riverperson and move into their old place. The Shy sisters are okay with this! Snowdin has way more kids their age, and there's a schoolhouse so they aren't alone at home all day. The Blooks are happy to make the trip to visit sometimes too.

*** Shyren decided to make her name sound cooler at some point, she's ✨️Shyrup✨️ now

When Undyne's 15 her dad falls into the CORE. How? Not sure yet. Anyway, Undyne is so filled with JUSTICE DETERMINATION her hair glows gold and she vows to find him. It takes a few years, but they eventually figure out he's trapped in the void, build a portal and send a now 17 year old Undyne in to get him out.

The only problem is Fishdings is now liquid. He lives in a vat for a while, until he's eventually solid enough (slime consistency) to move around on his own. He immediately commissions a giant fish tank on the top floor of the lab, fitted with the void portal in the corner and takes to doing multiversal/void research in there.

The other scientists are relocated to a bigger lab in New Home so Fishdings can leave his slime and half built portals all over the damn place but they still visit sometimes! Fishdings visits the other lab sometimes too but mostly stays in a fishbowl on wheels so to not drip on the carpet.

Another year or so later, Fishdings gets word of a young scientist named Alphys who built a fabulous robot, that now has his own tv show. He arranges a meeting with her and hires her on the spot, giving her free run of the basement for whatever science related shit she pleases. He allowed her to use the basement because he wasn't using it, definitely not because he saw Undyne making heart eyes at the lizard monster...

Not long after that, Shyra "falls down". Fishdings and Undyne are devastated, and Alphys vows to find a way to revive Shyra and other monsters who have suffered the same fate.

The amalgam incidents carry out as they did in canon, except this time Fishdings finds out about it. It's difficult to hide four (five? six??) goop monsters in the basement when you have another goop monster two floors up who likes to pop down sometimes (nosy).

He encourages her to come forward about it, so the Amalgamates are returned to their overjoyed (albeit slightly confused) families. Undyne and Shyrup are, of course, overjoyed to have Shyra back! Except now she's also Moldbygg and Aaron, and goes by Baked Bread.

Two humans fall into the underground when Undyne turns 24. Their names are Revel and Frisk. Will they kill everyone or will they be pacifists? Depends which fanfic Killer and I will eventually write you read...

...

So yah. Other than Gaster being a fish and present and Undyne's dad and the amalgams being free and sans not existing and Shyrup and Baked Bread being very very relevant, not much else changes.

There are aesthetic changes ofc: Fishdings puts fishy motifs into everything he creates, and being head scientist means the rest of the Underground take to using fishy motifs in their everyday lives.

Fishdings made the puzzles in the ruins (he used to go down there to visit Toriel before she decided to close it off altogether), so they also look fishy. His puzzle skillz inspired Shyrup to make a few music themed ones of her own in Snowdin. Fishdings made a lot of the puzzles in Waterfall and Hotland too so again, FISHY MOTIFS.

Mettaton is Mermatriton bc he and Alphys were too inspired by the overabundance of fishiness.

Um that's all I can think of to say for now, oh expect in the fanfictions Killer and I will eventually write, the SOUL controls Revel on pacifist and Frisk on geno. So yeah!

Sorry this took a few days for me to answer lol, had to spent a while typing.

[fishdings]

Hehe I am lazy so REBLOGGING MY FISHDINGS ART INSTEAD OF REPOSTING!!

Fishdings and Riverperson (they r friends)

[worstutfanonthingpoll]

AKSJJFBEHRJWH MAYBE??

Like, Fishdings has a thing for Asgore like as soon as he and Shelley show up in New Home and are like welcomed in person by his majesty (which is one pf the reasons Dings keeps calling him specifically about his conspiracies), but the actual ship is just mutual pining from like a year after he's hired until the end of the fanfiction era (when Asgore's like omg ex waifu hi can i like kiss the scientist pls pls and Toriel's like fine ig just NOT HERE THERE IS A CHILD)

So maybe its a weird dream or something lmao

Decided to split the Fishdings Au into three main parts:

SPIRIT PHONE ERA

I'm a lemon demon fan, and so am making a storyline of Fishdings teen and young adulthood with songs from Spirit Phone (and some others).

For example, touch tone telephone is when he had a conspiracy theory phase and wouldn't stop calling the king about it. This got him on the "never hire" list. He only got off the list when he went on to draft plans for the core.

As your father I expressly forbid it is his relationship with his father. Knife fight is how he met River Person. Cabinet man was a stupid experiment of his. He was fine afterwards, amazingly.

I will probably never animate this, but feel free to imagine my vision lol.

Oh also Fishdings has a bad mullet this entire era.

ASK BLOG ERA

Eventually @sans-au-war-ii and I will make an ask blog that will basically cover the lore from the pinned post. This is Undyne's childhood, from when she's born to when she's 24, aka when Revel and Frisk fall into the underground

FANFICTION ERA

The fanfictions me and sans au war will eventually write, telling the story of Revel and Frisk's journey through the underground.

There will be two fics: a geno one and a pacifist one. Geno is Frisk's POV and Pacifist is Revel's

(FOR THOSE WHO DON'T KNOW, Revel is the kindness soul, she falls with Frisk and uses all pronouns)

Yeah that's all I have to say here really lol

[fishdings]

U are correct! And to spare Shyrup you must beat her in a rap battle after the regular battle! It's fnf style!

And Baked Bread fights you instead of sans at the end of geno. You can't kill her bc she's an amalgam. Until...

Please explain everything about this AU I know you'll like it

:D!!!

Okay, Fishdings is basically an AU where Gaster is Undyne's dad and his name is Fishdings Angler!

He's still the royal scientist though, he works for Asgore and specialises in multiversal studies, coming up with ways to bust out of the underground, the CORE, SOULS and whatever mechanical bullshit the adhd mindset decides he should build today.

The canon Gaster followers are, of course, his coworkers, as are the Goners.

He had a sister named Shelley (a geologist) who reproduced via mitosis twice. She had two daughters who she named Shyra and Shyren. Sadly, not long after she created Shyren, she was killed by the JUSTICE DETERMINATION child, Caper.

Oh also here's a list of the fallen human children and their soul powers:

Chara: Determination (i think)

Idyll: Patience

Antic: Bravery

Spice: Integrity

Llark: Perseverance

Caper: Justice

Revel: Kindness

Frisk: Nothing (get rekt, despite everything u continue to just be urself)

Despite mourning his sister, Fishdings was also jealous that she had children and decided he should attempt to carry out something similar! He set up in the lab basement a là powerpuff girls, and combined the powers of HIMSELF*, RAW COSMOS AND GOLDFISH CRACKERS! He was content with this mixture, but OH NO! he accidentally knocked in a flask of LIQUID JUSTICE DETERMINATION, a lá powerpuff girls! (like I said, he was studying souls)

*(he can use magic to shift between having legs and having a fish tail, and mid shift it's goopy. He used a lump of this goop)

From this mixture a five year old child sprung fully formed and immediately attempted to fight her creator. And won. Fishdings was very very proud of his five minute old daughter and immediately took her to his boss so she coukd get lessons in combat. While she attempted (and failed) to beat the living shit out of Asgore, he came up with the perfect name: UNDYNE.

Once Undyne got too tired to keep attempting to fight, Fishdings decided to take her to see her relatives. They took the ferry (obviously) and Undyne got to meet her honourary uncleaunt Riverperson.

Riverperson has legal custody of Shyra and Shyren (they and Shelley were inseparable when she was alive), but as they are busy ferrying people around half the day (and trying to build a bigger boat) they mostly leave the girls in the care of the Blooks.

Undyne meets her cousins and their babysitters: Maddy, Blankstablook**, Napstablook and Hapstablook. Maddy, the eldest at 13, is the only one who actually babysits (the others are no help) but all of the ghosts insist they babysit too.

** Blankstablook is the ruins dummy

Shyren, one, is excited to meet her new cousin and they are fast friends. They frequently run around the house together screaming. Shyren is a very musical baby and Undyne just likes yelling.

Shyra, six, is... less fond of Undyne. As her mother was killed by the justice child and Undyne is made of justice determination, she resents her new cousin a little. She eventually warms up to her though, and they grow up very close.

Shyra and Shyren live in the house that we know in the game as Undyne's, in Waterfall. The Blooks live literally right next door, making babysitting convenient. Undyne spends half her childhood here when Fishdings is busy with science stuff.

Undyne and her dad live in the top floor of the lab. It's really just a bed crammed into a corner with various photographs pinned to the walls around it, but there's a tv in the basement. So. Undyne is free to run around the lab as long as she doesn't touch anything dangerous. The other scientists become quite fond of her over time too.

A few years later, Fishdings decides that Undyne is getting too old to live in the lab with him, so they buy a house in Snowdin for Shyra, Shyrup*** and Riverperson and move into their old place. The Shy sisters are okay with this! Snowdin has way more kids their age, and there's a schoolhouse so they aren't alone at home all day. The Blooks are happy to make the trip to visit sometimes too.

*** Shyren decided to make her name sound cooler at some point, she's ✨️Shyrup✨️ now

When Undyne's 15 her dad falls into the CORE. How? Not sure yet. Anyway, Undyne is so filled with JUSTICE DETERMINATION her hair glows gold and she vows to find him. It takes a few years, but they eventually figure out he's trapped in the void, build a portal and send a now 17 year old Undyne in to get him out.

The only problem is Fishdings is now liquid. He lives in a vat for a while, until he's eventually solid enough (slime consistency) to move around on his own. He immediately commissions a giant fish tank on the top floor of the lab, fitted with the void portal in the corner and takes to doing multiversal/void research in there.

The other scientists are relocated to a bigger lab in New Home so Fishdings can leave his slime and half built portals all over the damn place but they still visit sometimes! Fishdings visits the other lab sometimes too but mostly stays in a fishbowl on wheels so to not drip on the carpet.

Another year or so later, Fishdings gets word of a young scientist named Alphys who built a fabulous robot, that now has his own tv show. He arranges a meeting with her and hires her on the spot, giving her free run of the basement for whatever science related shit she pleases. He allowed her to use the basement because he wasn't using it, definitely not because he saw Undyne making heart eyes at the lizard monster...

Not long after that, Shyra "falls down". Fishdings and Undyne are devastated, and Alphys vows to find a way to revive Shyra and other monsters who have suffered the same fate.

The amalgam incidents carry out as they did in canon, except this time Fishdings finds out about it. It's difficult to hide four (five? six??) goop monsters in the basement when you have another goop monster two floors up who likes to pop down sometimes (nosy).

He encourages her to come forward about it, so the Amalgamates are returned to their overjoyed (albeit slightly confused) families. Undyne and Shyrup are, of course, overjoyed to have Shyra back! Except now she's also Moldbygg and Aaron, and goes by Baked Bread.

Two humans fall into the underground when Undyne turns 24. Their names are Revel and Frisk. Will they kill everyone or will they be pacifists? Depends which fanfic Killer and I will eventually write you read...

...

So yah. Other than Gaster being a fish and present and Undyne's dad and the amalgams being free and sans not existing and Shyrup and Baked Bread being very very relevant, not much else changes.

There are aesthetic changes ofc: Fishdings puts fishy motifs into everything he creates, and being head scientist means the rest of the Underground take to using fishy motifs in their everyday lives.

Fishdings made the puzzles in the ruins (he used to go down there to visit Toriel before she decided to close it off altogether), so they also look fishy. His puzzle skillz inspired Shyrup to make a few music themed ones of her own in Snowdin. Fishdings made a lot of the puzzles in Waterfall and Hotland too so again, FISHY MOTIFS.

Mettaton is Mermatriton bc he and Alphys were too inspired by the overabundance of fishiness.

Um that's all I can think of to say for now, oh expect in the fanfictions Killer and I will eventually write, the SOUL controls Revel on pacifist and Frisk on geno. So yeah!

Sorry this took a few days for me to answer lol, had to spent a while typing.