Izana is your high school friend. He's usually cold to people, but he's trying to be nice to you. His white hair and violet-like purple eyes seem cold and unfeeling.

One day Izana gives you a doll, a miniature of it, and there is something you don't know...

This Izana-like doll can teleport herself to you whenever he wants, he can hear you when you talk to the doll, and usually teleports to you with the doll while you're sleeping, which he hides from you