#in the daytime you know that the dream circumstances could never be possible but you're still rattled

[thewritehag]

You know those dreams that make you dread the thought of going back to sleep?

[mannaima]

I was thinking about a dark joel x reader with smut she's innocent and still kind of sheltered from the world (doesn't go out that much) maybe because her father is the leader (of fedra or something), then one day on the rare occasion she happens to be out and Joel sees her and he has to have her and he has an unhealthy obsession to make her his. And he manipulates her into having sex with him then he tells her "you're mine forever".

My Best Friend Joel(part one)

Summary: Joel sees a pretty little thing and takes advantage of a girl who knows nothing better.

Authors note: WOOOOO this is so hawt. Dark! Joel is a such a sleazy little bastard when he wants something, and this time all he wants is a sweet girl to warm his DICK!!! Also have u seen that tiktok that says Pedro Pascal would guide u thru it,,,,,,, Yeah. This is kinda based on that LOL.

I also decided I wanted to make this a two parter. Create tension. Hehehehe

Word count: 4.3K

Warnings: Dub-con(ish) ( joel manipulates), age gap (reader is 19 and Joel is 56), stalking, generally creepy Joel, reader has no idea how friendship and joel takes advantage of this by making her think suckin dick is how you say hello.

“What do we do when someone knocks at the door and doesn’t use our secret knock?” 

“Hide in the cupboard.”

“Good. Do we ever look out the windows in the daytime?”

“No, we do not.”

“Well done. Lastly, where do we never go?”

“Outside.”

Your father kissed your forehead, his FEDRA uniform draped his body as he waved off, shutting the door behind him as you locked the many different locks. Your father had instilled the fear of the outside world to you since day one, you were to never leave the home under any circumstance. When you were small, you listened to his long list of rules, you didn’t so much as peek through the curtains as long as the day was bright. But as you got older, you slowly began to understand less and less of your fathers worries. He told you stories of the zombie-like creatures that lay beyond the walls, the people fighting for something as simple as sleeping pills. You were fascinated at first, but it slowly began to bore you. You grew tired of the home you spent your entire life in, not even being able to go to school throughout your youth. Even now, at nineteen years old, you were old enough to have your own apartment, but your father insisted on just one more year, he told you it wasn’t safe.

You looked through the sheer curtains, watched the people walk along the dirty and destroyed streets. Dirty, tired, exhausted, and yet you envied them. You wanted the feeling of freedom, even if it meant that freedom guaranteed you danger. What was the point of living if you didn’t experience fear once in a while? You sighed, and continued to watch the people below you, you didn’t care anymore. Just once, you wanted to feel the fresh air, hear the chattering of people up close, maybe even meet a friend. But your dreams stayed dreams for so long it didn’t seem possible to even see the outside. You stood up from your seat next to the window, in anger, you were tired of being cooped up. You paced around the room, your mind conjuring up the idea to escape, even just for one day. You finally decided on a decent enough plan.

You would leave, just for a few hours. You could wear a disguise, maybe a head covering and large enough jacket, and explore. Feel the air and make a friend. You would leave thirty minutes after your father left, and leave the door unlocked. Nobody had ever tried to knock on your door for the past nineteen years, so why would someone do it now?

You nodded to yourself, the pieces of the plan finalizing in your head. You walked to your bedroom and began to plan an outfit, something practical but also not to draw attention. You settled on a pair of bootcut jeans with a plain t-shirt, covered by a large jacket, and a black scarf worn over your head. You had seen enough people every day to understand the average outfit, you nodded once again to yourself. This was perfect.

-------

“Alright sweetie. I’ll see you tomorrow morning, they have me working the night shift. Be safe alright?” 

“Yes father.” You nodded, and he kissed your forehead and you waved him off. The night couldn’t have gone any slower, your mind racing in excitement. You hadn’t accounted for your father working an extra long shift today, so that gave you even more relief in leaving. You had to make sure you got home no later than 4 pm, a quick glance at the clock showed it was 10 am. Leave at 10:30 am. You had plenty of time, you didn’t have to worry. You paced around the home, too anxious to sit down and wait, you checked the clock periodically, hoping for it to be time soon. The second the clock hit 10:20, you marched into your room to put on your clothes. Slipping on every single garment, you finished with a pair of red converse, your breath hitching in excitement. As you looked at yourself in the mirror, you couldn’t help but feel a tinge of guilt. You were betraying your fathers rule he made for your safety. But the other side of your brain told you that he couldn’t keep you here forever. You shook your head, as if to rid the thought rotting your brain, and you took one last look at the clock on your wall.

10:30.

You had to go now.

You made your way to your front door, hand shaking as you reached for the knob, why were you so nervous? You’ve waited your entire life to do this, can't stop now. You pushed open the door, and your eyes shut a little due to the brightness. You closed the door behind you and descended down the stairs, very carefully. You were in awe, you had never felt so small in your life, the world being so big around you. You wanted to run, frolic, and enjoy the wonder of the outside world. You didn’t care how destroyed it all was, how the cracks in the streets made people trip, or the smell of firewood that burned through your nose. No, it all felt like such a privilege, you had never known such freedom.

You walked among the people, trying your best to blend in, make yourself appear as normal as possible. Your biggest fear was being mugged or hurt, and then your father would never let you out of his sight again, maybe even tie you to your bed. You smiled, a rare joy among the faces of the depressed, no more were you a prisoner.

Vendors selling shoe laces, patches of cloth, and other things you didn’t quite understand, but still appreciated nonetheless. You wanted to get a closer look at a small doll-like figure made of cloth, so you reached your hand out to grab it. As you did, another hand did as well, causing you to both flinch.

“Oh. I’m sorry sir.” You noticed the hand was much larger than yours, with hair that began to go slightly gray.

“No, my fault sweetheart. Go right ahead.” You peered your head up to look at him, right away you noticed he was much older. He was dirty and had a look of an unknown emotion. 

“Thank you.” You quietly said, before reaching to take a look at the doll, small, and it had a small smile on her face. It was made out of scrap clothing or cloth, and it had a strange texture, yet it was so cute to you.

“Five ration cards, miss.” The vendor told you, and you immediately froze. Ration cards? You didn’t know what that was, having never known about stuff like this. 

“I. I- Um. Sorry.” You slowly began to put back down the doll, embarrassed of your actions. A hand pushed your hand back, however.

“Here you are sir.” The large man next to you handed the vendor some cards, leaving you confused.

“I- Uh. Thank you sir.” You looked up at him, holding the small doll to your chest. You hadn’t had a doll since before. Ever.  

“It’s not an issue at all, sweetheart. I take you don’t have a job?”

“Haha. Yeah, I guess you could say that.” You didn’t really know what to say, but he nodded at your answer.

“So where you off to?” You both walked into a direction you had no clue of, but you just shrugged.

“I dunno. I was just walking around. Just exploring.” You were not confident in your answers, unsure why this man stuck to your side. 

“You don’t know?” He questioned you. You stopped and debated your next move. 

“I-I’m gonna go home.” You turned on your heel, and walked in the opposite direction, leaving the man to watch you go back. You were scared, mostly, you didn’t know how to respond, and he was a stranger! You collected your breathing, as you were hyperventilating. Your feet hit the gravel heavily, you couldn’t wait to get home. You finally entered your home and slammed the door shut, making sure to lock every single lock. Slamming your bedroom door open, you tore off your clothes into a box under your bed. You groaned, in defeat, maybe your dad was right after all. You were too scared of the outside world, and the people asked so many questions! Overwhelmed, you decided to slip on a large shirt and go to sleep. Cuddling up under the sheets, your eyes slowly fell into slumber

—-------

Over the past few days, things were normal. Well, at least your version of normal.

Your father came home, but he was much more distant these days, not even giving you the usual spiel every morning, just leaving. You assumed he was more stressed as “smugglers” became more frequent. You didn’t understand it all, but every day you watched the people below, wishing you were them.

Knock. Knock knock. Knock. Knock

You stood up from your chair by the window, confused, as it was still day time, why was your father here? It was the secret knock, but it was far too early for him to be home. You warily made your way to the door, taking your time to unlock the many different forms of protection. As you opened the door, a foot was placed between the doorframe and the space open. You looked up, and you were met face to face with the man from earlier.

“Let me in, sugar.” You stood in shock, allowing him to push past your hold, and allow him in. He shut the door, loudly, behind him.

“Lovely home you have here…” He trailed about the apartment, hand rubbing against furniture and knick knacks.

“W-what are you doing here?” You backed up slowly, your mind racing, how did he know the knock? That was between you and your father only. 

“Can’t pay a visit to a friend?”

“I-I. I don’t understand...” You tried to hide the fear in your voice– keyword, tried. 

“Aw c’mon don’t act like that sweetheart. I see the way you look out that window, I know you’re all lonely here. I know you need someone. And that someone is me, darling.” He sounded deranged, the more he spoke, the weirder you felt. Why did he know so much about you? But, he was right, you were lonely. With no friends to call your own.

“How did you know the knock?” He chuckled and walked closer to you.

“Don’t worry about that sweetheart. Now, how about we go out?” You raised an eyebrow at this suggestion.

“Out?” He was close enough to touch you now, his boots slamming against the floorboards. He was putting his arm around you now.

“Yeah. You drink?” You shook your head, causing him to chuckle.

“‘Course you don’t. Well we can go back to my place and talk, I could make you some food. I got some books you could read.” He pulled you close to him. You looked up at him, a small smirk was on his face as he looked down. You slowly nodded, feeling your insides warm up. A friend! He might’ve been a little creepy, but he seemed so nice. You slowly pulled yourself out of his grip, his arm going up as you moved.

“L-Let me change, first.” You rubbed your hair nervously, and he took a seat, legs spreading wide.

“Take as long as you need to, sweetheart.” You nervously smiled and walked to your bedroom, your nerves making you forget to close the door all the way. You didn’t notice the eyes that watched you remove your shirt and pants.

—-------

You walked by the side of the larger man, you felt so small compared to him. You blurted out the first thing on your mind.

“You never told me your name.” He looked down at you, a small smile creeping on his face.

“Joel. What about you, sweetie?” You told him your name, to which he nodded. You kept looking around at all the people, some giving you a strange look. Joel eventually wrapped his arm around you, keeping you close to him. People never stopped staring at you, it made you slightly insecure. You knew you would stand out. Joel began to rub circles into your back, as if he knew what you were feeling.

Step by step, you grew closer to his apartment, making you nervous, what if you did something wrong? You never had to deal with people. As he pulled out a small key to unlock his door, your heart was thumping in your chest. 

“Home sweet home.” He let you enter first, and you took in the sight around you. It was much dirtier than yours, but not entirely his fault. Everything seemed to be used, or very old. You kept quiet as you eyed the room.

“Come, sit.” He said, very authoritatively. Your feet began walking towards him without any thought, you learned to obey commands like that with your father.

“You want any water?” As you sat, you muttered a small ‘yes please’, which prompted his hands to come up to your chin, making you look at him.

“What was that, sweets?” Your eyes widened slightly, he was very close to your face.

“Y-Yes Joel, please.” He let go, a satisfied smile on his face as he turned around to fix you a glass. Was this friendship? You didn’t know it would be so touchy, but I guess that was normal? You watched him pour the water into a small glass, your eyes fixated on his figure. 

“How old are you, Joel?” You swung your feet in the chair you sat in, waiting for him to come back.

“Well aren’t you curious.” He walked back with a glass of water for you, and a smaller glass of brown liquid for him. “I’m fifty-six. How ‘bout you?”

“Nineteen…” You didn’t realize he was much older than you, he was older than your father!

“Quite a big girl. And you don’t have a job?” Shaking your head, you felt slightly embarrassed.

“My dad won’t let me go out. Never got to go to school, or have friends even. You’re my first.” Joel’s cock twitched at your choice of words, but his demeanor remained nonchalant.

“That’s a shame sweetheart. You’re old enough to have a family, and your dad still won't let you leave?” You looked down, saddened at the reality.

“Does he know you left the house today?” You shook your head, prompting Joel to stand up.

“Such a bad girl. Leaving the home with a stranger.” He drew closer to you.

“I thought you were my friend.” A chuckle left his lips.

“Right. But you still left without permission. That makes you so naughty.” He lifted you up from your seat and made your legs wrap around him, making you jump a little at the touch of his hands against your ass. His face was so close to your own.

“Mmmm. You’re so pretty.” Your face was red, you felt tingly. His lips got close to your own. He placed them on top of yours, you just looked at him while his eyes closed and his tongue moved around. He pulled away and looked at you. He smiled to himself.

“You’ve never kissed anyone, have you?” You shook your head, and he brought you close to his face.

“Move your lips with mine, open your mouth slightly when you feel my tongue.” He whispered to you, softly. Again, he placed his lips against yours, but this time you followed his movements, his mustache tickling the top of your lip, making you giggle. He smiled against your lips before swiping his tongue against your bottom lip. You opened your mouth for him, as he said, and his tongue pushed through your mouth. His tongue swirled with your own, drool coming down your chin. You stayed like this for a while, his hands on your ass, holding you up, your mouths connected one another. He finally pulled away, your body feeling weird as you watched a trail of saliva connect the both of you. Joel put you down on the floor, allowing you to stand.

“Do friends usually do stuff like that?” Joel stayed quiet, for a moment, before nodding.

“Yes, but only friends like me and you. You can’t do that with anyone else, understand?” You nodded, his head patting yours.

“Good girl. Let's get you home before your daddy finds out you left.” 

“Okay Joel.”

—------

You had made it home before your dad came back, sighing in relief. Over the past few days, however, Joel managed to come shortly after your dad left. You two would go over to his home, talk, do more “friend stuff” as you liked to call it, and he would drop you off.

Today was no different. He knocked, normally, and you knew it would be him. Opening the door, his smile made one appear on your face.

“Joel!” You gave him a large hug, face buried into his beefy chest. He laughed and ruffled your hair.

“Hey sweetie. Look at you, all ready.” he pointed to your outfit as you pulled back, and it made you giggle. You wore jeans, a tight white shirt and a dark green zip up jacket.

“Mhm! I was waiting all morning for my dad to leave so we could hang out!” He laughed and bent down a little, to get to eye level with you.

“Where's my kisses, huh?” You smiled and closed your eyes to kiss him, his tongue slipping in, as you two sloppily kissed for about a minute. He pulled back up and wiped his lips, face looking very satisfied. You giggled at his expression.

“Let's go then, sugar.” He held out his hand for you to grab, which you did, and he led you out of the apartment.

The entire time walking to his home, you never failed to get weird looks. Joel gripped your hand, but you stared at your feet to try to ignore the looks.

“Don’t worry about them sweetheart, they’re jealous.” He led you to his apartment, and let you in. You walked towards the table but he stopped you.

“Come to my bedroom.” Your face was a little confused, but you trusted Joel. Without him, you would be friendless and still alone in your bedroom, rotting away. Following him to the bedroom, you noticed how different he was acting. He seemed more touchy, much more than usual, his hand rubbing your back as you walked in the room, and touching your leg as you sat down.

“I’m gonna teach you something important today.” You paused, very curious to what he was talking about.

“About what?” Your head cocked to the side.

“Male anatomy.” You stared at him with wide eyes, very intrigued at what he was talking about. Your father never taught you much about your own body other than periods. Let alone talking about the male body.

“Okay.” He smiled at you, his hand now on top of yours. He placed it on his lap.

“This right here,” His hand began to move around, your hand feeling a soft body part not attracted to anything. It moved around with your hand, which made him tense. “This is a cock. It’s what men use to go to the bathroom. But it has another purpose. It makes me feel very good.” You were so curious, but as your hand moved at the puppetry of Joel, the body part began to get stiff and harder. Joel groaned under his breath.

“And when I get excited, it gets hard.” You hummed, very intrigued at the idea of that happening.

“Do you wanna see it?” He whispered, your hand still moving against it. 

“Y-Yeah…” He moved your hand to the side and undid his belt, undoing the buttons, and finally unzipping his zipper. Moving his boxers out the way, his cock sprang out, making you jump. It was so. Big. Your eyes widened, you had never seen anything like this before.

“Woah… It looks. Big.” He chuckled at your comment, his cock twitching slightly.

“Give me your hand.” You looked at him, giving him your hand as he held it in his. He put your hand against his cock, your fingers wrapped around it. It was so warm. He moved your hand up and down, the head of his cock disappearing and reappearing under his foreskin. He groaned once more, you looked away from his cock to look at him, making sure it wasn’t hurting.

“Is this okay?” You were unsure of it all, worried that he didn’t like it.

“More than okay, baby. Fuck, you do this so good. But I know how you could make this better.” You stared at his features, his Adam's apple bobbing when he swallowed, his eyes staring at your moving hand.

“How?”

He moved your hand and lifted you up from your seat on the bed, and placed you on the floor, ordering you to be on your knees. Your face was now at eyes-level with his cock, and you could see it much closer. The base was covered in hair, some gray ones mixed in between the black ones. There was a little bit of liquid dribbling out of a small hole at the top of it.

“Come here, princess.” His hand grabbed a fistful of hair, gently, and pushed you towards his cock. 

“Put your mouth on it. Kiss it like you do me.” Your eyes never left it, it was so large and warm, you remained curious about it. You brought your lips to it, and gave it a small kiss. He groaned, the grip on your hair slightly tighter. You began to move your lips across it, and you swirled your tongue around it, making Joel groan louder. You kept doing that, small amounts of drool tracing down his cock, the tip as wet as could be. Joel seemed to grow impatient or was just really excited because he slowly pushed your head down his length. Your mouth felt filled instantly, stretching to accommodate his size. You got no more than three inches down before you started to gag. You tried going back up, but he kept you down there.

“Stay like that, sweetheart, be a good girl for me.” You sputtered and drooled, gagging once more. You had tried to wiggle out of his grasp, but his hold on you was tight and firm. Eventually, he pulled your hair, making you move back up, making you cough from lack of air.

“You’ll get better at that eventually.” Joel grabbed your hair once more, and pushed your mouth back on his cock. He bobbed your head up and down, making sure not to go further than what you couldn’t take. You were drooling so much, his entire cock became wet over how much drool there was. His groans filled the room, bed creaking over how fast he moved you. You shut your eyes and tried to ignore the pain in your jaw, wanting to please your friend Joel. He suddenly pulled your hair back, very roughly, and his free hand began to jerk off in front of your face. You didn’t have time to question it before a semi-white liquid poured all over your face, and almost in your eyes. You flinched and closed your eyes as more of it sprayed on your face, jumping in surprise at each flick. It was warm, and the small amount that got into your mouth was salty. After Joel’s long moans seemed to quiet down, and you no longer felt sprays on your face, you opened your eyes to meet Joel’s. His hand reached your chin as he made you look slightly up towards him.

“Fuck… You look gorgeous sweetheart.” Your cheeks flushed at his words, you felt so confident whenever Joel complimented you. He got up for a second, then handed you a small rag.

“Wipe your face sweetie.” You took the rag, and noticed his cock was still out. While still large, it was smaller now, and more floppy, not as stiff as before. He pulled up his boxers and buttoned up his pants again. He sat down in front of you, your face now clean from his release. He pulled you up to sit on his lap.

“What was that at the end?”

“That's called cum. It happens when I get really excited and I reach the end. It feels really good.”

“Can I do that?”

“Well, not the same way I do. But yes, you can cum too. Not today though, that’s a lesson for another day.”

“Okay Joel….” You smiled and buried your head into his large chest, his hand petting your hair as you snuggled into him. You really liked Joel, your best friend. 

[toho-literature]

Perfect Memento in Strict Sense: Pages 48-51 - Yukari Yakumo

Youkai of Boundaries

Yukari Yakumo

Ability: Manipulation of boundaries

Threat level: Unknown

Human friendship level: Normal

Main place of activity: Anywhere and everywhere

When talking about youkai-like youkai, the first name that comes to mind is probably Yukari Yakumo.

To start with, she is a youkai that you do not want to deal with. Even besides the fundamental issue of the danger of her ability, this youkai will appear anywhere unexpectedly, her character is lacking in human sentiment, and her behavioral principles are completely different from those of humans, to name a few of her issues.

Her appearance is not especially different from that of a human.

She prefers extravagant clothes, and is often seen with a large parasol.

Her main time of activity being at night, she sleeps in the daytime.

All in all, she is a traditional youkai (*1).

Though she claims to hibernate through the winter, we have only her word on it and it's unknown where she lives, so this is unconfirmed.

There is an article in the Youkai Encyclopedia from Aichi's (*2) Gensokyo Chronicle from long ago that seems to describe her.

It appears she existed back then as well.

Ability

The ability to manipulate boundaries is a terrifying ability capable of fundamentally undermining reality.

As far as we know, everything is built upon the existence of boundaries.

If there was no water surface, there could be no lake.

If there was no sky line, neither mountain nor sky could exist.

Were it not for the Great Barrier, even Gensokyo itself wouldn't exist.

If there were no boundaries, everything would probably exist as a single enormous object.

Thus, the ability to manipulate boundaries is by logic an ability of creation and destruction.

It essentially creates a new existence, or conversely rejects some existence.

Among the abilities youkai are known to possess, this is one of the most dangerous, being comparable even to the power of gods.

She is also capable of moving to an entirely separate location between gaps in space, whether it be her entire body or only a part of her.

It's said that this ability is not limited to physical space, but also applies to pictures, others' dreams, and even stories.

In addition, she possesses superhuman (*3) intellect, especially concerning mathematics.

Furthermore, due to her long lifespan, she has a wealth of knowledge and experience.

Daily Life

She is actually quite talkative, and is willing to teach you about herself or about Gensokyo.

However, most of her stories are impossible to prove or confirm, so no one can say how many of them are true.

Her house is said to be located at the boundary between Gensokyo and the outside world, just like the Hakurei Shrine, but no one has ever actually seen it.

This is because she moves through gaps in space, so she seems to appear out of nowhere and disappear into nothing.

No one can follow her through the gaps, so it's not known if it's true or not (*4).

In addition, she rarely does things herself, leaving all of her day-to-day work to a beast youkai she controls as a shikigami instead.

This shikigami acts in her place while she is sleeping, particularly during the day or in winter.

Also, as she has lived a long life, she has many youkai friends that are similarly long-lived.

Most of her friends are youkai of the strongest class, like Yuyuko Saigyouji of the Netherworld and the oni Suika Ibuki (both described later).

Connection to Gensokyo

Gensokyo is isolated from the outside by a large magical barrier.

This barrier could be seen as the boundary separating the inside and outside.

However, the outside world and Gensokyo are still physically contiguous, so it could perhaps be said that the boundary that the barrier forms is what logically defines the place that we call Gensokyo.

In other words, one could say that with the mere existence of the youkai of boundaries, it's possible for places like Gensokyo to be created and destroyed.

It could be claimed that the fact that a youkai of boundaries lives somewhere unknown in Gensokyo, a land surrounded by an enormous boundary, implies that she must have some deep, vital connection to its formation.

Strangely, this youkai rarely attacks humans.

A youkai that never attacks humans is by definition not a youkai, so it is assumed that she does somewhere.

As she can freely visit the outside world, it's speculated that she attacks humans in the outside world (*5).

Anecdotes About This Youkai

Genso-Lunar War

This is a story from over 1000 years ago.

It is said that she once invaded the moon by modifying the boundary between truth and falsehood and plunging into the moon's reflection on the lake's surface.

Although she went in with an army of impudent youkai, they were crushed by the Moon's advanced weaponry.

It is believed because of that incident, youkai usually do not choose to attack outside their territory.

The stories of this event are also what made her powers widely known among humans.

Youkai Expansion Project

A story from over 500 years ago.

The project refers to a plan designed and implemented by Yukari in order to restore power to the youkai of Gensokyo, who felt pressured by the increase in the human population.

Until then Gensokyo was merely a spot deep in the mountains in the middle of nowhere, but she planned to create a boundary of illusion and reality around Gensokyo, logically creating a new world.

By establishing Gensokyo as an illusionary world, and the outside as the real world, the youkai weakened by the outside world would naturally flock to Gensokyo; this was a truly epochal event.

With this, it ended up that even youkai from outside of Japan immigrated to Gensokyo.

The effects of the boundary continue even now.

The cleverness of the plan lies in allowing youkai to disappear in the outside world while permitting them to thrive within Gensokyo.

As long as the outside world remains in the hands of the humans, Gensokyo will remain in the hands of the youkai.

The Great Barrier Commotion

This, of course, refers to the existence of the Great Hakurei Barrier (*6).

It is said that this youkai was one of the sages who suggested the creation of the Great Barrier and created what is now Gensokyo.

However, it appears that in the beginning there was some opposition to this plan from a number of youkai, and there was open conflict between them.

As this conflict distracted youkai from their normal attacks against humans, the Great Barrier has received great praise among the humans of Gensokyo.

Eventually, word of the usefulness of the Great Barrier circulated among the youkai, and there are scarcely any that oppose its existence now.

The Phantom Commotion

The Phantom Commotion refers to the weakening of the boundary between the Netherworld and the world of the living, which has made it easy for the respective denizens of each to cross through it.

It is obvious it was the doings of this youkai.

Since this was the act of a wise youkai, it's possible there was some extraordinary benefit to youkai society in doing this. (*7)

As this is an ongoing incident, the matter remains unresolved.

Eyewitness Reports

"She makes my food disappear right out from under my nose, even when I'm careful about it. I wish she'd stop." (Reimu Hakurei)

When you're not looking she can slip her hand through a gap in space and take things from far away.

"She keeps poppin' into my house and I wish she'd cut it out. Can't she at least use the door like a normal person?" (Marisa Kirisame)

Even playing with teleportation has its limits.

Countermeasures

She seldom appears in the human village.

Barring unknown circumstances, she likely doesn't attack normal humans very often.

No matter how confident one is in their abilities, it would be wise not to attempt to exterminate this youkai.

Though, she would likely make allowances for the power of her opponent so as not to allow the battle to become too one-sided.

In any case, there is neither any sort of defense against nor weak point in the ability to manipulate boundaries.

Her intellect far surpasses those of humans, and her physical strength is what you would expect from a youkai.

Humans probably don't even have a one in a million chance of winning against her.

Excepting, of course, the countermeasure of approaching her in a polite manner.

*1: Recently, as the number of nocturnal humans increases, so does the number of diurnal youkai.

*2: The Gensokyo Chronicles written by the first member of the Hieda line, more than 1200 years ago.

*3: She's a youkai, so it's no wonder she is superhuman.

*4: There are rumors her house is located in the outside world.

*5: There are other rumors that she is a youkai from the outside world, and she simply comes to here for play. Indeed, she may spend the winters and the daytime, when she claims to be sleeping, in the outside world, and some even say that the world in Yukari's dreams IS the outside world.

*6: The boundary separating Gensokyo and the outside world. It's a logical boundary, but it is said to have become extremely difficult for humans and youkai alike to pass through it, so it's clearly a strong boundary.

*7: I have been unable to confirm this in my lifetime.