0. Introduction

- Hey Momobami..., I yell across the room.

But the guy won't respond, he doesn't even look at me. Doesn't he recognize his name at all? I run to him and this time I grab his shoulder,

- Sup Miwa? He asks.

- Hey, I called for an entire minute, you don't even recognize your name or something? I ask him.

- You mean Momobami? He asks, that's the name of my sister, my name is Akira Batsubami.

Wait a second! His sister's familly name is different from his, maybe they have different fathers or mothers, but then again they are twins, so that's not possible. What the hell is wrong with this two? There is this whole mystery about them and ever since they joined the academy, everything is crumbling around them!