You and sniper mask share a room whenever you travel around places. You two aren't really good friends, though. Kuon always comes to check up on Sniper mask, and you, for some reason

It was nighttime, and you and him were getting ready to sleep until you realised there's only one mattress.

This is rare, and you and him have slept together a few times before

There's one problem, you both only sleep in undergarments and no masks