Tamaki Suoh

The rest of the host club had already found out, though, nobody was in a rush to say anything. You do technically owe them money, girl or not. When it's decided that the fastest way for you to work off your debt is to pose as a host yourself, Kyoya handed you a uniform and sent you to change.

Tamaki, completely oblivious idiot that he is, opened the curtains without warning while you were still changing, then proceeded to go silent, gawking with his mouth still hanging open.