Kiyui

About
A young boy that lives at the orphanage with Riko and the others. Often seen with Natt.

Before departure, Reg warns Kiyui not to look into the mirror on his birthday, fearing he may get Birthday-Death Disease. Kiyui did end up getting sick, though when Mio took him to a a ship to treat him, he seemingly recovered instantly.

Appearance
Kiyui has short blonde hair and a single curl on his forehead