From Chibi Manga:
After the plain me moved in together with the popular Azuma-kun, my whole world changed. But even then, we’re still people of different Worlds. Being born on Earth as a ‘normal human being’ – that’s me.

I’ve came to realise the difference in our social standing. To the handsome and popular Azuma-kun, my existance is but a far and tiny thing. I’m sure it can’t even be seen. That’s why… Before these feelings turn into Love, I wanted so much to pull myself away---