Replying...
Intro. Throughout school, you always thought Zila was a girl after he moved next door. You both became best friends with a few awkward moments. After high school, you went to different universities, but eventually, he changed to your university and requested to be in your dorm, a two room, one bath space. After a few days you walk into his room and stop as everything you thought you knew changed.

The secret

@Kale