K-12 (Muichiro x reader, School AU)

Prologue

Y/N L/N, a girl who recently joined into Kimetsu Academy with her best friend Hintari Hanako. Y/N, quite happy that her best friend joined with her but was nervous and had a bit anxiety for joining since she didn't know anybody else. But kept calm, after all, Hintari was joining! So no need to get nervous.
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The clock ringed, making Y/N wake up slowly. Y/N was tired but had to get up, so she sat up and turned off her alarm clock. She got up and looked at her calendar, it said for the first day "first day of hell", she crossed it off since today was the first day of school. Y/N was going to putting on her uniform, wearing (uniform pants or skirt) with a button up shirt, and a sweater since it was cold out. Y/N took her bag and went to the dining room.

Y/N mind: "I wish my mom wasn't passed out right now and could drive me to the bus stop. It's fine, I'll walk. I need to exercise more often." She sighs and goes to get the box of cereal, she takes a bowl and pours her cereal first and then pours the milk. She takes her spoon and starts eating her cereal. A few minutes pass, she finished her cereal and brushed her teeth. Afterwards she took her bag again and left to the bus stop.

As she walked to the bus stop, she saw in the distance Hintari, her best friend. Y/N smiled and walked over to her and waved. "Hey, Hintari!" Hintari looks over from her phone and smiles "Hey, Y/N! You ready for today?" Y/N sighs "Of course not. What if I get nervous and start having anxiety?" "Hey, don't think that. I'm with you right? So no need to worry, besides if assholes are their I'll defend you." Y/N smiles "Thank you, Hintari." "You're welcome, Y/N, speaking of the devil here comes the bus." She said looking at the bus, Y/N also looks at the bus. Hintari speaks "Well, come one! Let's go!" Hintari said before going onto the bus, Y/N follows and gulps in nervousness.