Warnings:

Bullying (mentioned) (also done by other characters)

Manipulative parents

Muichiro's twin has cancer

Smut in the last chapter.

You had a bad reputation in school, mostly because most of your friends were guys, and it was because they were a lot nicer than the girls were at your school. Most only cared about their looks and getting boyfriends while you were more interested in hard work and school work. You lived by yourself and had a job. You worked a lot during the summer to make sure you could survive off of twenty hours a week during the school year since you weren't allowed to work more than that due to your age and also being in school. The circumstances were complicated, and you never really explained why you weren't living with anyone, but it was better for you.

All your friends had a copy of the apartment you made. You had an open-door policy with your friends stating that if they needed to get away from their house for any reason, they could come over. No questions asked. Genya and Sanemi used to end up on the couch, often to the point they had a dresser drawer each in your apartment. Sanemi moved out of his house once he graduated and got his place and stopped coming over as much, but his brother almost ended up living with you because you were worried for his health and safety.

He would come over covered in bruises and blood, and before you even became friends with him, he bullied you. But then it all changed when you ended up cornered by a bunch of seniors, and they were trying to get you to strip until you weren't wearing anything. He lost his shit and fought every single one of them without worrying anoint getting suspended.

When the teachers finally came around, he screamed at them for not doing their jobs and got out of school suspension for a week. Everyone else got a slap on their wrists because they were from important families. Once he came back, you gave him a key to your apartment. He tried to give it back, but you refused since you said you two were friends now. Then, one day, he didn't show up for school, and he always texted you after that.

You called him, and his phone was disconnected. You went to his house and found out his father was abusive, and that's how he ended up with most of the bruises. He had been tied to a bed for who knows how long, so you called the police and broke into the house to get him free. If it wasn't for his brother, we'd you would have been shot by his drunk dad who thought Genya was an escaped prisoner.

Since then, you have been friends with him, and you watched his siblings from time to time if you weren't working yourself. You watched Tanjiro's brothers and sisters as well, but if you had work, Inosuke or Zenitsu would watch them while you worked. You had been friends with the other three for ages, and you were friends with some girls, just not many.

Muichiro Tokito was new to the school and was pushing his twin brother Yuichiro in a wheelchair threw the halls. When he came to the elevator, he sighed, seeing the elevator was broken and wasn't going to work for a week and a half.

"Crap, I really should have checked to see if the leash was wrapped around my leg before opening the door," Yuichiro said.

"At least the stairs have a bar. Here I'll carry your chair," Muichiro said.

"I can't believe our first class is on the second floor," Yuichiro muttered.

"Need some help?" You asked startling Muichiro.

"Ha! Muichiro, you are jumpy today," he said.

"What's going on?" Tanjiro asked as Genya came from the other side of you almost immediately.

"We got some new students, nothing to worry about," you chuckled as Genya looked at them with suspension.

"My name is Y/n, this is Tanjiro, this is Genya, Inosuke is the one who is probably eating two sandwiches at once close by. Zenitsu is talking to Nezuko and also probably helping freaking out because he forgot to study for the math test we have coming up.

"We have a math test?!" He shrieked.

"There it is," you said as Zenitsu started to go through his bag for the notes.

"Here, take mine. You need to get organized, man," you said, seeing a pike of paper and no folders.

"What happened to your folders?" Tanjiro asked.

"Um, they are in my locker," he said.

"Oh boy, I can't believe I'm friends with this idiot," Genya muttered.

"Need help?" You asked.

"Um...," Muichiro paused.

"Yeah," Yuichiro said.

"Oh my gosh, you guys are identical twins that's so cool!" You said.

"Yeah, sorry about the mask. I am going through cancer treatments. It uses my specific cells to fight the cancer, so I won't lose my hair. I won't find out if I need radiation for two months or if I don't have cancer anymore," he explained.

"Well, I hope for a speedy recovery. Hey, the elevator is broken," you said.

"Yeah, I broke my leg. While taking my big dog out, he pulled me down the stairs. I'm Yuichiro, and this is my brother Muichiro. He's kind of shy," he said as Muichiro looked like he wanted to disappear.

"It's okay, genya was an introvert until he met me," you smiled.

"No, I wasn't, I didn't like you. You tried talking to me for a month and a half, so I bullied you for being needy," he explained.

"But then we became friends," you smiled.

"Yeah, yeah, don't make me change my mind," he said.

"You can't because you have a key to my apartment," you stated, "here I'll carry Yuichiro, and you guys carry the wheelchair.

"Give me your bag then," Genya said as you gave him your bag.

"I don't think this is a good idea. You are rather small, no offense," Yuichiro said.

"I just look small," you said.

"She dragged me to her apartment when my dad drugged me. You are a lot smaller than I am," Genya said as you picked up Yuichiro bridal style and started carrying him up the stairs.

"Inosuke!" You said as he saw you and shoved a sandwich in his mouth.

"Coming!" He said as Genya took Tanjiro's bag, and Inosuke helped Tanjiro while Zenitsu was stressing over the test.

Tanjiro and Inosuke carried the folded chair up the stairs, and Genya followed close behind.

Muichiro went up the stairs and heard someone wold whistle, making Genya stop dead in his tracks.

"Really?" Genya asked as a guy chuckled.

"Do that again to my friend and I'll fuck you up. I'm not afraid to get suspended for the rest of the school year," he stated as the guy laughed.

"Funny coming from a guy that has probably seen her naked," he chuckled.

Genya pushed his breakfast tray down the stairs with his foot, making it hit the floor.

"You want to act like a dog and eat off the floor. My dad is in prison for the rest of his life. You don't think I will gladly end up there, too?" He asked.

"Genya, it's okay. You know I don't care what others think about me," you said as Muichiro looked at him shocked.

Genya glared at him, and they all made it up the stairs. Then Genya gave everyone their bag back.

"Genya, I would like it if you didn't end up there," Tanjiro said.

"Hate boys," he said.

"But you are one," Inosuke pointed out.

"So are the rest of us," Zenitsu informed.

"I'm a man. You don't wolf whistle at girls, try to look up their skirts, try to get every girl to sleep with them, or point out their figure every time they walk past me. None of you idiots do it either, so you are men too. I don't care if you're new. You touch her without her permission, you're dead," Genya informed, talking to the twins.

"Genya," you said.

"I'll do it too," he said.

"Muichiro is shy, if he even talks to the girl he freezes and you don't have to worry about me I don't think any girl wants to date a sick guy," Yuichiro said.

"Muichiro, what class do you have?" You asked as he looked at his paper and looked at you, but hid behind the paper, making you burst out laughing.

"Once he warms up to you, he will talk. He's always been this way," Yuichiro said as you folded the paper down a bit and saw the classes you had.

"Hey, he shares almost all the classes with me. He has weights. You, Tanjiro, and Inosuke share the same weight class," you said.

"Why do I have to be left out?" Zenitsu asked.

"Zenitsu, you have it the seventh hour, plus you share almost all your classes with us," you said

"Except for math! I hate math," he said.

"You turned in your form late, not us," you explained. 

"I was busy!" He said.

"Playing Fortnight?" You asked.

"No... okay, yes, but there was a map!" He said.

"What am I going to do with you?" You asked.

"Marry me?" He asked as Genya quickly hit him.

"No one in their right mind would marry you in the state you are in," Genya said as you took Muichiro by the arm and took him to class.