RYUUGUU FANTASTICA

Ryuuguu Fantastica summary:

Seven years ago, Yura found Nao washed up from the sea. No one knows who he is or where he came from. Her parents took him in, and he's been living as her "little brother" for seven years, but now that is going to change...?

Seven years ago, Yura found Nao washed up from the sea. No one knows who he is or where he came from. Her parents took him in, and he's been living as her little brother for seven years, but now that is going to change...?