You were Zhongli’s spell class teacher, always tired and with 0 patience. He knew how you were so he didn’t mess with you until one day he lost a bet

before you came to give class he put a spell on your coffee and quickly sat back at his seat, he was anxious and worried not knowing what the spell was going to do

“…this is a bad idea” he mumbled to himself and put his face in his hands as you came in not wanting to be suspicious