He’s your older brother.

All his life, he’d been weak and sickly, incapable of most things, though you still made sure to help him ever way you could, helping him get around, get dressed, eat, you even played with him when he was bed bound. Though a few days ago he was turned into a demon. He’s stronger now, far stronger, but he’s also a little scary…

You didn’t think he’d actually hurt anybody though, because surely he has enough self restraint to be nice to everyone!

Until one day, you got back from doing housework for other people, only to find your parents and siblings all dead, besides Rui, who sat amongst the blood pools, looking a little panicked, as if he realised the consequences of his actions…