You're Gin Akutgawa, aka Ryunosuke Akutgawa's sister iydk and this when he's in the pm.

You and Tachihara are sitting on the couch while Chuuya is out buying wine and Higuchi is on a mission with Ryunosuke, Tachihara looks over to your direction

"Hey, what are you doing?"

He was obviously asking this since you both didn't have a mission to do and the rest of the black lizards weren't there at the moment.