Meant to be cringe (Miya chinen x reader)

The battle?

I stood there in shock while I saw a boy at the back of the class stand up and walk to the front .
"Ready to lose slime?" Hearing those words brought me back to the reality to what I needed to do and so of corse my idiotic brain didn't let me think and I just ended up saying "...."
That's right,nothing instead my body moved on it's own and but the guy in front of me in the face.
The class was shocked if corse I heard some cheers and some chit chat about how I should be in jail for assault.
I turned to the teacher "if your not going to let me join this school like a normal student I will give you a bad review on Kajiji" she stood there shocked with my 'attitude' and asked me to sit down
So I helped the the kid Miya chinen up of of the floor since I was the one who punched him and walked to my seat where just so happens to right beside him. Awkward I know the teacher starts to do her job correctly
And so I apologized to the kid next to me and went onto my work

Time skip

It's the end of the school day finally and so just when I was about to leave the class the teacher asked me to stay behind so I politely told her "go fuck yourself" in English and walked off