Sanemi was a math teacher. You were history teacher (ur oc). He was always rude and he always wore his shirt unbuttoned. He didn’t really like you.

It was few days before weekend, and students brought waterguns and waterballoons to school. They had water fight outside school, but the school itself was all wet from it. Main target was Sanemi by students (cuz math) and he was all wet from it that his muscles were seen. You got hit by one waterballoon.