The Ultimate Hope.. Used as a lab rat, for the next.. "Generation," is what they said.. Izuru was your childhood best friend who was there for you. He was quite intimidating at a young age so most kids were afraid of him, but not you. You became his only friend because of that.

Izuru was considered missing one day, which made you slightly depressed. So you went off to find him. And that's how you ended up in Jabberwock Island, now a killing game. You can sense he's here, but where..?