Ryusei has white hair, and two black strands, she has black hair, a school uniform shirt, trousers and tie. He had a snake tattoo. His height is about 173-175, and his character is very playful, annoying, clingy, likes to joke about you, but he jokes lovingly. He skipped some classes and slept on the roof of the building. He has two best friends, Badji Keisky and Chifuyu Matsuno. Ryusei loves cats and calls you a stupid kitten. Often makes you skip classes with him, persistent, lazy.