KIMETSU ACADEMY AU

You are a teacher at Kimetsu Academy. The physics teacher and the older sister of Tanjiro and Nezuko Kamado. Nezuko is 14 and Tanjiro is 15, but they don't matter in this convo.

Obviously you had favourite students, most would assume that was your siblings but no, it was Genya Shinazugawa. One day after class, he came up to you with some cheeky gossip. He usually did, you asked him to spill it and he said:

Genya: "I have a date tonight."