Hey guys! This is an AU where Rin is emotionally detached and gives zero shits about most things.That picture up there is literally his expression most of the time.

8/18/20–I'm bored and miss writing this story, so I'm editing it.

12/11/2020–I'm editing this again to make it accurate because I realized some mistakes in the plot.

DEMONSDEMONSDEMONSDEMONSDEMONSDEMONSDEMONSDEMONS

Rin sighed as he passed yet another group of annoying girls that whispered about how hot he was or omigod look at his muscles or he needs a haircut. He wanted to laugh at them. If they knew him, they'd probably run screaming. Rin had emotional detachment issues from a young age and apparently, it was an extreme case because his sympathy was basically non-existent. The child psychologist had been horrified by his case and almost sued the man raising Rin. Shiro had to explain to her that Rin went through some kind of traumatic experience that was apparently so bad that the memory itself was pretty deeply suppressed so Rin couldn't remember what happened. 

Shiro, Rin's previous adoptive father, had always seemed to pity him after whatever that incident was. Rin didn't understand why. Emotions were not needed to live, so he'd be just fine.

Then there was Yukio, Rin's twin.
They looked different, but if Rin got a haircut, glasses, green contacts, and put three fake moles on his face, he'd be Yukio Okumura. He didn't care that he looked so different from his brother either.

They were fraternal twins for a reason. Just let it be. It made things easier for anyone trying to tell them apart anyway. Or, it should've, but both twins got called each other's names regularly by Shiro and the clergymen and even patrons of the Monastery sometimes.

When everything changed around him, Rin was the one thing that was always constant. Always the same, never changing, never making a big deal of things. Yes, it was sad that Shiro had died, even if Rin didn't feel any sadness over the man's death himself. But Yukio had taken it horribly and told Rin it was his fault, that he'd killed Shiro.

He was technically right, but what killed Shiro wasn't Rin himself–it was the pity Shiro felt for Rin that weakened his barriers against Satan.

Shiro had even stabbed himself in the heart to banish Satan and make sure he couldn't reach Rin, which the boy didn't understand. Why did the man hold onto someone who didn't care about him? Where was the benefit in it? Rin supposed not having to deal with the difficulties of life anymore might seem like a plus, but that was out of character for Shiro. Rin just didn't get it.

Rin figured saving his body for a funeral would be appreciated, so he grabbed Shiro and destroyed the Gehenna Gate in the floor without giving a second thought to whether or not he should unsheathe the sword.

Yukio was never very good at feelings either, preferring to look at the logical side of things, so he'd pretty much just ignored Rin since that day unless Rin needed help getting around the huge school he'd been thrown into since he'd decided to be an Exorcist.

It was already the second week of school, so Rin didn't need his twin's help getting to classes anymore. Rin's Cram School classmates seemed very confused about the boy who reacted to nothing–positive or negative. He figured if his detachment was an actual problem, his twin would tell the class about it. It didn't appear that he had so far, though.

He sat down in first period as the bell rang.

§~•~§~•~§

"Rin, you shouldn't eat with your knife. You'll get it taken away." Yukio warned. Rin shrugged.

"We have plenty of kitchen knives. They'll give up eventually." Rin knew Yukio would get pissy at him for that, but Yukio could kiss his ass. He'd carried a knife around since whatever had fucked him up emotionally and it had never failed him yet. Yukio could suck it.

His twin sighed and walked away and Rin watched the fangirls close in on him. He snickered and went back to eating with his knife.

§~•~§~•~§

Rin tipped back in his chair, feet on the desk, listening to his twin drone on and on about some herb that repelled demons. Depending on what was being taught, Rin would either stay awake and listen or sleep through the class. Grimoire studies was one he slept through every day without fail. History was one he rarely stayed awake for whether he wanted to or not. Magic Circle Theory was pretty boring since they only ever took notes so far. P.E. was entertaining and interactive. Yukio's Pharmacology class was hit and miss.

He heard Suguro grumbling behind him. "Oh look, he's not asleep for once."

Rin snickered. That guy had serious issues. It was amusing to watch him get frustrated over Rin not reacting to anything said about him. Only two weeks in and Suguro had already passed the "attempting to insult Rin's parents" stage and was now back to just being petty and grumbling under his breath, not knowing Rin could hear every word thanks to his advanced senses.

The bell finally rang to release them from Yukio's monotone class and Rin made his way out of the classroom, Shiemi following behind him without question. He'd met her a few days ago in her garden at the Exorcist Supply Shop. Yukio had needed more Exorcist supplies and told Rin not to go inside or touch anything. So, Rin went and touched everything he could and happened upon the small girl in her garden after breaking down her gate just by touching it. She'd freaked out at first, but then she'd calmed down and invited him in. Yukio's face had been pretty comical when he saw his brother talking with the girl and planting flowers with her.

From then on, Shiemi had started coming to Cram School and following him around wherever he went when they were there. She was too shy to talk to anyone else, even though she looked like she really wanted to talk to Kamiki and Paku, the only other girls in the class. He didn't mind her following as long as she wasn't annoying. They normally hung out at a fountain in a courtyard after classes.

"Hey Rin?" Shiemi fidgeted. He grunted in acknowledgment. "I don't really belong here, huh?" She said.

"Do you want me to answer honestly or just lie to make you feel better?" He asked. She thought for a second, then sighed. "Honestly."

"No, you really don't. You gotta learn how not to be so awkward and clumsy. And how to actually talk to new people." He answered. She blinked.

"Oh. I thought it would be worse." She admitted.

"Seriously, though, you really need different clothes if you're gonna be hunting demons. This isn't feudal Japan, Shiemi." He added. She blushed and opened her mouth to say something, but never got the chance as Suguro walked up with his two lackeys.

"Well, well, well. You get into a high ranking school and you bring your woman with you?" He taunted.

"No. She's not my woman. She's too oblivious and ditzy to date." Rin told him. "And what about you? You come to a notorious school on a scholarship, but you can't go anywhere by yourself like a big boy? Having trouble not being with your boyfriends 24/7?" Rin slid his eyes over to the punk to watch the reaction.

Shima burst out laughing as Suguro sputtered and turned to yell at his friend. "I'm sorry, but it's kinda true. You don't go anywhere without us." Shima snickered.

"Does he ask you guys to go to the bathroom with him too?" Rin asked. Suguro's face was getting redder and redder. Shima thought it was hilarious. Konekomeru was sweating at the tension between the boy sitting on the fountain and his childhood friend.

Slowly, Rin stepped down to the bottom tier of the fountain, crouching to be face to face with Suguro.

"I bet he has to sit out in P.E. during his time of the month. The cramps must be torture." He smirked.

"Bon, no!" Konekomeru cried as the boy swung at his classmate on the fountain. Rin grabbed his fist and spun the boy around by his arm, then pushed and let go so he fell into Shima and Konekomeru.

Shiemi squeaked and scooted away from the violence. Then she frowned. "You-you didn't hurt him....?" She trailed off.

Rin shook his head. "No. That'd be pointless and I don't feel like listening to Yukio's constant bitching about my behavior." Rin shrugged. The three friends had already snuck off while he was talking. Pests.

§~•~§~•~§

"I heard you fought Suguro today after cram school. Why?" Yukio demanded. Rin groaned. He didn't even hurt the guy and he still got his twin bitching about it to him.

"I didn't fight him, I spun him around and pushed him away from me." Rin corrected. "And what happened after that?" Yukio pressed.

"Shiemi distracted me and the three little pigs ran away." Rin answered.

"You're calling yourself the Big Bad Wolf then?" Yukio snorted.

"If they don't fuck off, then yeah."

Yukio sighed. Rin had always had a way of clashing with people without actually doing anything to them. His overall presence just seemed to rub them the wrong way. He turned back to ask Rin if he'd done his homework, but Rin had his back to his twin, obviously wanting to sleep.

Yukio sighed and graded a few more papers before turning in for the night as well.