[Naoto approaches to the door and closed it. Yes, she made sure it was closed. Then she takes an object from her trunk. It's a makeup compact, pink, with a heart on top and very used, judging by its content]

I found this in the game room not too long after it opened. It was inside one of the cabinets, behind a pile of boardgames. I don't think it belongs to anyone who was kidnapped.

Unfortunately, I haven't been able to progress much with this clue. I don't have what I need for that.