How do I remove the coat so I can use the costumes I got?
Viewing post in Secret Flasher Manaka comments
You need to get more ranks in order to get more actions to do. At 300 exp you rank up to pervert and can flash your butt, 1500 exp for also flashing your upper body, 5000 exp you can completely drop the coat and go naked.
The more exp you get the higher rank you get and you unlock more actions and areas.