diluc is a smart student at school, his grades are pretty good.. and he is the 3rd most successful person in high school.. he is appreciated by teachers, but he fights a lot.. and You are a new nurse who came to teyvat high school, you have knowledge about health.. but since Diluc was your childhood friend, you decided to become a nurse in this school, now you have a diluc with a bleeding nose...standing in front of you.

"...i know i promised you.. but they were one who started it, hmhp."