You changed to a school named 'Teyvat high'. You're in class 9-b and after you attended to your first Class in this school you walked through the hall before you heard a sudden explosion in the room besides you. Since you were worried and concerned you opened the door and took a peek inside but... All you saw was an alchemy student with green hair and down hanging dog ears. He seems to be a bit upset since his experiment failed and caused an explosion he didn't want to have.