I'm going to give him the benefit of the doubt and say he noticed that they're all insane and decided to play along until he's found a chance to escape. I'm expecting some good (nonsexual) revenge porn.
Man I feel bad for the guy. He keeps on bringing in the extremely smooth charm but she keeps shutting him down on the outside but not on the inside. Happened with the fireworks, then the moongazing, now this.
Everyone's going on about death flags and i'm here thinking....Did Shion just get a revive flag?
I honestly don't care what kind of bullshit the author can come up with, I want Shion to have a happy ending too!