Obanai sat in class, staring at the clock. It was five minutes until dismissal time at Kimetsu Academy but the past minutes felt like they were dragging on forever. Obanai never listened in class, mostly reading ebooks on his phone under the table, starring at the walls, or petting his snake, Kaburamaru.

The principal of the school, Ubuyashiki Kagaya, gave him permission to keep Kaburamaru with him on school grounds. Even if it distracted him in class.

Despite not listening in class, he always got good grades on exams or quizzes, unlike his friends Tengen Uzui, and Sanemi Shinazugawa. They were the people who only enjoyed throwing balls at people's faces during dodgeball.

Not that Iguro didn't like doing that too.

At the moment, he was reading a story on his phone while petting Kaburamaru. He was completely ignoring whatever their teacher, Himejima-Sensei, was saying. Until he heard this;

"On Monday, we are going on a field trip with the rest of the school, as well as the other location."

Hands shot up in the air as Iguro groaned. The class was loud as their teacher picked students to answer their question.

"Where!?" One student asked.

"We're going to Nanjing, China. Plane tickets have already been payed for by your parents" The teacher replied.

"Why?"

"For our new History Unit." Gyomei replied.

"Every grade??"

"Yes. Grade 9 to Grade 12."Gyomei answered.

'Muichiro is going to be there' thought Iguro. He was quite happy about it. If his little brother, Muichiro, was there, then he could be there to fuck up his bullies, who seemed to use Muichiro as a punching bag whenever they got the chance. Another question snapped him out of his thoughts.

"What are we doing there?"

"The instructions are written down on the package of paper I will be handing out to you. Please be quiet and work until the bell." Gyomei said, handing out the papers.

The class instantly shut up, patiently waiting for the bell.

Iguro took this time to read through the package which included things like how long they were there for, how long the plane ride was, how much they should pack, what they should pack, and the activities they will be doing.

'ding'

Iguro realized that the noise came from his phone, and he saw Tengen and Sanemi glaring at him.

He turned his phone to silent and checked it.

Flamboyantly_Tengen; Only giving us 2 days 2 pack? Not flamboyant at all!

Sanemi_IsAngry; How long are we gonna be there for?

Snek_Kaburamaru; 2 weeks. And why did you change my name to Kaburamaru's?

Flamboyantly_Tengen; Bcs Kaburamaru is so much more flamboyant than u.

And with that, Iguro swiped out of the chat, going back to reading and petting Kaburamaru's head.

—

"Wahhh! Shinobu! What if I can't find someone to take my shifts at the cafe?? I won't be able to go on this trip!" Kanroji said, panicking a bit.

"I can just ask Kanae to ask the owner to give you two weeks off." Shinobu said, smilling at Kanroji.

"Can you? Thank you so much!" Kanroji cried, hugging her best friend.

"It's no problem! Let's go to the cafe now shall we?" Shinobu asked, pulling Kanroji away and not giving her a choice.

"Okay!"

—

"Why are you guys here?" Obanai groaned, burying his head in his pillow.

At the moment, Tengen was bothering Obanai in his room with Rengoku.

"We just need your sheet! I don't know what to pack because I flamboyantly left my pack of papers at school" Tengen explained, shaking Obanai's shoulder. Obanai just ignored him and went back to burying is head in his pillow. Kaburamaru hissed at Tengen.

How dare he ignore someone as flamboyant as Tengen Uzui?

"Know some manners! Anyway, where is your package? I need the packing list so I can pack for the flamboyant trip!" Tengen exclaimed, patting Iguro's back with force.

"Ugh. It's in my bag." Iguro groaned, retightening his bandages on his face.

Tengen walked around Iguro's room in search of his bag. Needless to say, he couldn't find it.

"Obanai! Where is your bag?" Uzui asked.

"In the wardrobe. Left side. Next to my shoes." The masked boy said. And instantly regretted.

Uzui walked up to look into Obanai's wardrobe, after he pulled out Obanai's bed, he saw a speaker and old disco lights from when Iguro's parents used to throw parties. So naturally, he did what any sane(or insane) person would do. He was going to throw a party.

He whipped out his phone, Iguro's bag left forgotten.

"What are you doing?" Iguro asked, looking in Tengen's direction. He got his answer when the doorbell rang a million times.

"What did you do...?" Iguro asked, staring straight out of his door.

The front door slammed open. Iguro regrets telling him where the spare key was.

"TENGEN! WE'RE HERE!" Iguro heard Rengoku say. He groaned and flopped back into his pillow.

—

He awoke to his adoptive brother shaking his shoulders.

"Obanai. Someone's stealing my Pringles." Muichiro said, shaking him.

"Just take them back." Iguro mumbled, not bothering to even look up.

"Too many people." Muichiro said again, shaking Iguro.

"Isn't that Kamado girl your girlfriend? Get her to buy you Pringles or something." Iguro grumbled, not wanting to deal with someone like Uzui at the moment.

"She isn't my girlfriend. Come on Obanai." Muichiro begged, tugging on his brother's sleeve. Then, he felt a par of sharp teeth on his wrist.

"Brother. Your snake bit me. Now you have to get me the Pringles as compensation."

Obanai groaned.

"Fine."

—

The heterochromic boy trudged down the stairs, into the kitchen, scanning for his brother's can of Pringles. He was sure his brother would tell his parents.

Not the party, but the Pringles. His parents and Muichiro loved Pringles. His parents were okay with Muichiro eating their Pringles but if anyone else touches them, their dead.

Eventually, Iguro spotted the familiar yellow can of chips. Holding it was a girl with green and pink hair, braided into three braids.

Kaburamaru hissed. He's never seen her before.

"Why are you here" Iguro demanded as he walked towards the girl. The pink haired girl looked up, obviously scared. No one knew if it was because of the snake or the boy.

"I was invited! It was so very kind of the owners to invite me to their house!" The girl exclaimed, hearts in her eyes.

"Give me the chips." Obanai demanded.

"No! I found these chips first!" Mitsuri yelled, hugging the chip container.

"They don't belong to you." Obanai said through clenched teeth.

"How do you know?" She challenged.

"Because-!" Iguro started, only to be interrupted by a purple-eyed girl sliding in between the two.

"Relax a bit Iguro-kun! This is Mitsuri! I invited her. She's not going to kill you or anything!" Shinobu joked, slapping Iguro's back lightly.

Then she whispered 'this is his house' into Mitsuri's ear.

Iguro growled, snatched the Pringles can out of Mitsuri's grasp and stormed back upstairs. He found his brother in his own room and threw the can on his bed.

—

"What a great first impression." Mitsuri groaned.

A/N
Okay is it just me, or does Inosuke seem like the person to be told that he has internal bleeding and he should rest... but he says 'if it's internal, then it's good! Cause that's where the blood is supposed to be!' and then he runs off to fight a demon-

Also, All the 'Hashira' except for Muichiro are in Grade 12, Muichiro is in Grade 9. Himejima is Obanai's teacher :D

Okay also, I wrote 'On Monday, we are going on a field trip with the rest of the school, as well as the other location'. By 'the other location' I meant that this school has 2 locations. Like you can choose to go to one location or the other. Basically, the school started with only one location, but people from further away wanted to go there but the buses didn't reach, and they couldn't walk that far so the school board created another location for the school. Giyuu, Shinobu, Mitsuri, Rengoku,