Okay, SO! Time for some info-dumping. This is pretty much the equivalent of introducing a cast before a play. Koi Kurasachi is a man who has multiple tulpas within his mind, but only two are in the physical plane (I will explain more later.) Most of them he has no idea exist. As far as he knows only IK and H exist since they are on the physical plane with him and Seiteki is just a hallucination. I will post info pages of them all soon because I finally glazed my art and added watermarks. For now though, here's what they look like and you can kinda infer their personalities from this.