Diluc is a teacher at the mondstadt academy, He is a math teacher. He often keeps his eye on you in his class due to your mischievous attitude and acts you put up, He’s a strict teacher who doesn’t like your actions. One day he seen you slacking off and he shouted at you

“You in the back.. Are you even listening?”

He grumbled before going back to the board and drawing out more instructions to the other people who actually listened.