#the key scenes i wanted to write/draw are still included so im sated :>

[yiulee999]

opm time traveler au (spoilers)

genos goes back in time and tries to disguise himself and befriending sai as a bookworm lol and they become good friends until sai is fooling around and playfully steals genos’ glasses one day and the you know 💘 💘 💘 💘

what started out as a random doodle turned into a multi-chapter length fic draft out on discord!! *o*

the full convo/story is posted below bUT its heavy angst!! be warned!! sorry about the casual lingo, i was posting in chat format XD 

so time traveler au picks up from when sai was getting picked on back in middle school chapter in the manga

and when genos goes back in time he thinks the only way he can get close to saitama if he was an ‘outcast’ too

so he purposefully nerdifies himself more? lOL how is possible,,,

Originally genos got sent back by dr. Genus as way to figure out the key to sai’s strength

Bc in the ‘future’ genos, they had just met and genos just wanted to know what made sai powerful

And initially when they meet genos is very forward about wanting to know all about saitama who finds it kinda creepy and stalkerish when he finds genos tailing him in the hallways and after school haha

And other classmates notice how the new kid (genos) follows/takes an interest in the class loser (sai) so predictably they start making fun of and bullying genos too

Genos, true to form, doesnt give a fuck xD

But sai has mixed feelings about it bc it was the first time someone took an actual interest in him and even though he’s so forward, genos never overstepped boundaries with him and was an okay guy overallBut alot of the story has to do with sai trying to figure out what its like to have a friend

And what to do because hes never had one

But he does know that he doesnt like seeing genos getting pushed around or made fun of so there are moments where he’ll try to stick up for him by telling them to knock it off or pulling genos aside to a differnt hallway when he sees the bullies coming

At the same time hes so confused on like what to do right, so he’ll also try to push genos away, ‘maybe if he didn’t hang around me so much, he’ll won’t get picked on…’

There was one scene i knew i wanted to do

Where after sai stands up for genos, the bullies treat sai worse

So it was an after school thing, behind one of the school buildings where sai is beat up pretty bad (like barely standing) and the bully has him by the front of his shirt and had his fist pulled back

When genos arrives

Before, sai had managed to ditch genos so he wouldnt see sai when he’s ‘weak’And always made up some excuse when he bruises or other injuries

So genos interrupts the scene by straight up grabbing the bullies wrist

And seething in all toasty righteous fury ‘dont touch him!’

and sai cant see it cus he had two black eyes at this point

but this was some dialogue i had written:

S:’What’s he doing? Why is he helping me?‘ "Hey–“

Bully pulls back fist "Look, kid. You’re new so I’ll give you a free pass this time if you walk away right now. You wouldn’t want us to mess up that pretty face of yours, would you?"

G: "How generous of you. Unfortunately, I won’t be extending the same courtesy to anyone who treats this person disrespectfully. Especially not ugly trash like you. "

Bully: "Why you–!! ”

And when the bully tries to redirect the hit to genos, genos instinctively throws out his palm and says ‘incin—‘ before he realizes he doesnt have his cannons

And genos is about to get b e a t

When sai wrenches himself from the bullies grip and takes the hit for him

They like tumble down and genos is confused to what happened before he sees sai lying motionless beside him, bleeding from his head and unresponsive

And i was gonna end a chapter there with genos screaming saitama’s name…

Next chapter was gonna be sai waking up slowly and in a world of hurt

He realizes he’s in the nurses office

It was night time

And when could finally see, he hallucinates seeing like 8 mini genos (remember the genosbots :3)‘Why…whys there eight of you/??’

So basically genos is worry over him so much whereas sai says its fine but genos is like feeling really bad so sai shakily reaches over and gently taps him on the forehead

And grins weakly, ‘there, now we’re even.’

Genos is crying openly bc he’s remembering when future saitama playfully hit his head after a spar and he thinks that saitama-sensei is strong no matter how old he is

And he’s just…overwhelmed by how kind and strong saitama is, even when he has no strength at all (Cus hes like 14 rn haha)

I think a couple days pass, and genos and saitama are eating lunch on the roof (cue bento box scene lol)

Sai is healing nicely, genos is still feeling bad whenever he looks over an sees the bandage on sais head

Some dialogue:

Eating lunch on the roof. G: How’s your wound? S: Hm? Oh, it’s fine. Don’t worry, my teachers say I have a hard head. G: I’m sorry. S: ? Why are you sorry? Not like you’re the one who punched me. G: I made things worse. If I hadn’t antagonized him, then–!! S: Then he woulda beat me up anyway. Seriously, man, it’s not your fault, okay? So you can stop doing all those things for me. G: Like what? S: You know! Like being nice to me and buying lunch and stuff. You don’t need to feel guilty about it anymore.

Sai is still kinda insecure abt having a genuine friend, so he still thinks genos is being nice to him out of pity or smtg, (and genos had been particularly nice to him after he got injured so he figured it was out of guilt)

And i mean….it was,, genos feels terribly guilty…but i think watching sai, who was powerless, attempt to protect him just made him more intrigued (and unbeknownst to him fall a lot deeper in love XD)

But genos says thats not why he does those things

That saitama reminded him of ‘someone’ he knew whom he admired greatly

At his ‘old’ school

He tells sai about his ‘sensei’ and how amazing this person was and all of his great qualities

And sai was feeling a little more depressed at each praise genos was singing about this person (coughjealouscough)

And i have another piece of dialogue here…

S: if you like him so much, why did you leave?   G: …I wanted to see the kind of person sensei was before he became strong. this is where he grew up. S: …seems like a lot of effort just for one person. G:.that person (sai thoughts: he’s still talking?)…no matter what i did..I couldn’t reach him. I’d do anything to close the distance between us..I thought that if I came here, I would be able to understand him. I thought I could help him. G: touches saitama’s wound But instead, I’m still the one being saved. I never learn.

And genos gives sai this painfully heartfelt smile and its full of regret, frustration, self-loathing, admiration, and some other unidentified emotion that just floors saitama

Saitama sees genos’ smile and his eyes and is just...stunned by the level of vulnerability he sees (he’s never gotten close enough to anyone before to see it)

So he reaches out, hestitantly at first, before wiping away genos’ tears carefully because if he touches any harder he’s afraid genos would crumble

S: “i dont really get it...but if you feel that strongly, then i’m sure some part of your feelings reached him.”

And they share their first hug then :3

////

((When i wrote this, genos didnt have glasses haha so i guess that scene where sai realizes how pretty genos is would go before this one))

I guess if the glasses were involved, sai would be torn between wanting genos to take them off (so he can see his eyes which oddly finds that he likes them...alot.) and keep them on so other ppl wont see how pretty he is

Bc sure if they saw, genos would no longer be his friend

He would have so many ppl vying for his attn, he would be surrounded by girls and guys and would be approachableAnd saitama would get left behind

But i think even tho sai wants to be selfish and keep genos to himself, he also realizes that genos wouldnt be bullied if he were more accepted

So he would encourage genos to ditch the glasses and genos would end up getting accepted by everyone but he would still stay with saitama and nothing would change between them other than saitama getting really red at random times and avoiding eye contact more

It would just be one of the many things that strengthen their relationship as friends. And i think i had planned some stuff where they do a bunch of typical friend / kid stuff

Like genos tutoring saitama on math, genos running circles around sai in track/field (‘wtf...huff are...huff you?! huff some...kinda...rOBOT!?). Them going to the arcade, saitama taking genos around to explore his hometown, they go on hiking trips and stuff. 

genos finding out saitama lived alone and that’s why he always buys lunch (or doesnt eat if he got bullied out of it that day) and talking out their issues and genos reaching out and saying yeah, he knew what it felt like to be alone

but that saitama should never feel that way because he wasn’t alone anymore, and saitama joking affectionately ‘yeah i have you to stick annoyingly close.’

and also heavy scenes like when you have to fill out future goals sheets in school where sai shyly admits that he’s always thought it’d be nice to be a hero and was shocked when genos was oVERWHELMINGLY supportive bc he’s never had anyone cheer for him like this, believe in him like genos does. And he calls genos crazy for agreeing with him, but he thinks he must also be crazy because when genos looks at him like that, he feels like he could do it

and its one of the first moments we see sai really open up to genos

bc being a hero was something he truly cared about

but his teachers, his classmates, heck the world, didn’t think he could do, they thought it was a hopeless dream for someone, and he’s so used to facing this kind of rejection that he’s started to believe it really would be impossible for someone like him.... 

but all it took was this one person, this one friend to tell him he could...and it made him feel invincible

and its probably the scene where saitama realizes how important genos is to him.

So of fucking course its when saitama realizes genos is important to him that drama bomb hits Basically, Dr. genus comes and pays genos a surprise visit. And hes like ��did you forget the reason I sent you back here? Any updates?”

And genos is like “i have nothing of interest to report”

genus: "This isn’t some children’s game, you know. "

genos: "I must be careful not to expose myself. Saitama-sensei is more observant than I had initially planned--"

genus: "You’re stalling. I have an idea: Fight him. "

genos: !!! dr : "You’ll have a disguise. I will re-install your blasters. Perhaps a stressful situation will trigger a transformatio--. "

((so it was gonna be hinted at that even though genos appeared like a normal human, he was just redesigned by genus and was actually still a cyborg) genos: "I refuse to put Saitama-sensei in danger!!"

dr: "What danger? He is more than capable of--"

genos: "Right now, he is powerless. An attack could kill him--!"

dr: " And doing nothing will kill us!! Your mission is to find out the secret to his strength! Something we both wanted to discover and the entire reason why I chose you as my test subject! I will not sit here idly while you indulge in your childish fantasies that will get us both erased from the timestream. Look. " //he shows genos a pic of the hero registery from their time//

genos: " !!! Sensei’s name is missing!”

dr: " Your name is gone too. I dont know what you did but your actions are interfering with the future. Here. Collect your belongings and leave no evidence behind. We depart in 1 hour. "

genos: " !! Wait! Give me more time!! I understand now..!"

//genos has a bunch of flashbacks of when he does fun stuff with saitama. When sai tries to make him something in cooking class (and fails badly lol). When saitama shares his manga with genos. When they watch anime together.//

Genos: “I understand now..what type of person sensei was...his strength (when sai was protecting him from bullies)...his kindness (sai wiping his tears away)...his warmth (sai hugging him*)...!!”

“I finally understand...!!”

sai holding his hand, sai smiling and eating with him..

“...what its like to feel human again!!!”

He’s suddenly lifted off the ground and pushed roughly against the wall. Dr. Genus has him by the collar.

“Reality check, little shit!! You. Do. Not. Belong. Here! You’ve been playing pretend for far too long! And guess what demon cyborg?”

He tosses genos to the ground

“Time’s run out”

So chapter was gonna end with genos’ hand slowly fading in and out

next chapter would begin with genos being given 2 hours by dr. Genus to basically pack his shit and go. bc they cant leave any trace of the future stuff when they leave So genos ends up back in the classroom Packing his cute stationary and shit xD

(That sai bought him o b v i o u s l y )

And he’s startled by the door sliding open

And saitama walks in

He’s suprised to see genos there (and looking guilty?) “did ya forget smtg?”

And genos just kinda..looks away

And sai sees him packing up and taking everything and hes quiet for a bit ...

“You’re leaving?” He asks softly

“Saitama-kun, I—!”

“Why?” He keeps talking in that soft tone, but it silences genos more effectively than a shout

“I..I can’t...”

S: “...Is it because of that person?”

(Sai remembers the shine in genos eyes when he talks about his ‘sensei’, his special person, and his heart kinda just falls to his feet)

(i never had a chance, did i...)

Genos cant answer because yeah it was because of saitama in the future. So what if genos disappeared? Genos didn’t care. But the world needed saitama. It needed Saitama The Hero. He had to leave now so saitama can exist in the future

But since he cant say anything, for fear or changing the future even more, genos just doesnt say anything

So sai assumes that yeah, it was because of someone else, someone better than him, someone who deserved genos’ admiration and loyalty

He doesnt say anything, just approaches genos slowly, trying not to startle genos who has like deer in head lights ready-to-b o l t

And saitama rests his forehead on genos’ shoulder, barely touching him but close enough that genos cant ignore him, genos can feel his presence and his warmth

And theres a moment where genos is t o r n

Bc this saitama acknowledges him in a way that future sai wouldnt. This saitama looks at him and sees him whereas his sensei’s gaze passes over him to focus on the sale sign

And genos has been in school again, and he realizes he missed it. He missed having his worries be about being late for class, missing a school assignment, whether he could sit next saitama next class, what to pack for his and sai’s lunch tomorrow

And he knew in the back of his mind, that his real self, was in surgery at this time, trading warmth for fire and destruction, shedding his humanity while his future self was regaining it in the past,Thanks to saitama

He inhales sharply, ‘sai—‘ S: “don’t go.”

G: !

(Sai thought genos was going to say he was going to leave and he didn’t think he could hear him say it) S: “I know..he’s precious to you...” He reaches for genos, and after hesitating over touching genos’ hand, he settles for gripping genos’ sleeve of his school uniform tightly S: “but you’re precious to me “

And genos has tears streaming down his face. Because he wanted to stay, he had never wanted anything so much before than to just stay with saitama before he became sensei, to cheer for him when no one else would, to stop him from reaching the point he had trade his emotions for his strength, to stop the emptiness before it could touch him

But he also knew...that in order for his sensei to become strong...saitama needed to have these struggles that pushed him to change

That success without sacrifice was impossible, and he knew, genos KNEW it in his soul that if he stayed...if HE was the factor that caused saitama to limit himself, to fall back on a regular life when genos had seen it with his own eyes that this was a man destined for greater things...he would never be able to forgive himself

Genos throws his arms around saitama and hugs him tightly. He feels like he’s floating with nothing to ground him than the feeling of saitama returning his embrace equally tightly with his still lanky arms

G: “Saitama-kun....Thank you.”

G: “...goodbye.”

So next chapter begins ...With genos ending up back in genus’ lab

G: “Are we back?”

dr: “It appears so. We should—hey!! Where are you going?”

And genos is running off to look for saitama/his SENSEI because he had to exist, he had to still be a hero, right?!

He bumps into a monster

But not just any monster...Its the mosquito girl XD

Genos fights MG because its what he’s supposed to do, but he’s not scared for the fight...he’s scared for what’s to come AFTER...

And saitama shows up and finishes off MG with wan punch!!!

Genos is thankfully, not in disrepair bc he managed to dodge her attacks and was basically stalling for time

Saitama kinda sees him and looks at him blandly but to genos, that garrish, eye-burning yellow hero suit was the best thing he had ever seen

S: “Oh. A civilian? Are you oka—“

And he freezes all of a sudden.

And genos also freezes bc he doesn’t know what to do Its saitama-sensei...he should know the script, he’s done it all before

But now saitama-sensei was the stranger and he longed for the comfort that came with saitama-kun’s toothy smile

But he too had changed....he was a cyborg now, weaponized arms and black sclera on full display. His core spun dangerously. Would saitama even recognize him? Would he remember that day in the classroom when they parted ways, that was only a few hours ago for genos but more than a decade for saitama?

Genos froze. Would saitama even want to remember? After all the heartbreak genos had caused him?

Lost in his thoughts, genos almost didn’t notice saitama approach until the soft crunch of asphalt right in front of him jarred him to reality

Genos held his breath

Saitama didnt say anything. Only let that sharp gaze pierce genos in ways no monster could.

Genos couldnt read what he was thinking, he never could on his sensei’s bland face but this time, there was something tightly guarded in those brown eyes.

Saitama muttered something so low that genos had to use his advanced hearing to pickup

S: “It cant be...”

Louder and taking an aggressive step forward, saitama clenched his hand into a fist. He narrowed his eyes. “...If you’re some kinda shape-shifting monster...this won’t end well for you.”

G: “It’s genos!! I’m...I’m genos.”

Saitama freezes and his eyes grow wide. Genos almost instinctively lurches foward when saitama falls back on his heels, appearing shaken.

S: ...genos?

Genos nods tentatively.

For a moment, saitama doesnt say anything. But genos finds he doesnt need to. Those brown eyes had opened and genos could see, could feel some far-flung emotions creep back into that achingly familiar face as saitama let his gaze trail from his new eyes down his circuited arms and linger on the glowing blue that peeked through his shirt

After what felt like years, genos saw a corner of saitama’s lips twitch.

S: “It really is you....Heh. You haven’t changed a bit.”

G: “Sai—“

S: "I tried to forget you. I tried to go back to life before you. I finished school .... somehow got a job as a shitty salesman..."

S: "...I really tried."

Genos looked down, ashamed. He had been the one to injure saitama so unforgivably. He couldn’t imagine what it would be like if saitama had done the same to him, if he had turned genos away from being his disciple. Kicked him out. How could you forgive someone who changed your world for the better, only to leave it behind?

More than anything, he needed to beg for forgiveness, not that he deserved it—but saitama did.

G: “Saitama, I—“

Sai shook his head, like he didn’t want to hear it.

Genos thought his core would crack.

S: “I thought...If I were strong, things would get better. If I were stronger than that person..maybe you would have picked me instead.”

S: “Maybe you would have stayed “

S: “I trained and trained until I became strong...but it wasn’t enough. To capture your attention, I had to be the strongest.” Saitama pauses and shoots him a small, cheeky grin that had echoes of the same toothy smile Genos cherished.

S: “I would have to be, to take care of someone as high maintenance as you.”

Then the smile faded. S: “But even after I became strong..what did it matter? You had left and I didn’t know if I would ever see you again. And if for some crazy reason i Did meet you again...I didn’t know if i had it in me to ask you to choose again..”

G: (full on oil tears, the whole shebang)

G: S-Saitama..!!

Saitama grinned helplessly at him.

S: “So hurry up and choose me, genos!”

G: “Sensei!!!” [ because I had already chosen you a long time ago ]

They hug.

THE END!!!!!!!!!!! :’D

There’s a small epilogue where sai’s like..you called me teacher again. Im still not a teacher you know (in reference to this original post: http://yiulee.tumblr.com/post/139194391025/time-travel-au ) .

And genos is like: dont worry sensei, ill explain it to you

And sai is like ah, okay? But first. surprise smooch! S: been waiting 12 years to do that :D 

/////

endless thanks to @konorai​ @batneko​ @egg-in-the-basket​ for bearing with me while i unloaded this beast into the discord chat..yall the real mvps!!! ;3;