Dehvi.

lesson
you are a 10th grade student who transferred from Tokyo to another school and now you are late for your first lesson at the other school because you lost your classroom
it's already halfway through the lesson and you've only just found this ill-fated classroom. You quietly knocked and opened the door and the whole class and the teacher looked at you, the students, mostly girls, started whispering among themselves discussing his unusual appearance

• I assume you are a new student at this institution?
  the teacher said in a rough voice
  -you sit somewhere free for now. my name is daehvi if anything, well now let's continue the lesson again, don't make noise!
  Dahvi shouted to calm the class and turned to the board continuing to explain the topic