Шіраторі Рюші

Ryuushi is an aspiring children's book artist. He moved into Narutaki Sou so he could attend the Emperor's Design School in Tokyo. Second cousins with Aoba Kozue. He had apparently met Kozue when the two were younger, but he doesn't remember about this at the start of the series. In the beginning, he is eighteen years old and his birthday is September 9.