Imma be honest, I wouldn't even think twice about those inhibitors. Bro has all kinds of medicine in there, so I would immediately assume he's just a mom friend who has everything available incase someone needs it.
I'm starting to wonder if he getting him mixed up with his twin since he can't remember Junhoo. Maybe Junhoo did all that with Sehyeon's twin in the past and don't know. 🤔