... Is it just me, or does Chitose's reason for committing suicide seem like a senseless overreaction even for someone of her age (at the time she died)?
Yeah, I hope there’s more exposition on it. I think right now she’s only showing a part of things because she’s trying to seduce the protag, but I imagine once it becomes a full confrontation things will be more clear. My 4th tier yomi says that MC’s sister committed suicide, and the full explanation of how yuri ghost died will contain a depiction of her suffering that will help butch crow gain some perspective on things and lead to character development.