Ryuuhei has red hair and brown eyes. He is seen wearing a silver colored earring in his left ear. Ryuuhei wears a black tank top and multi colored jacket. He also wears grey pants paired with a white belt. When Ryuuhei Oda was in elementary school, he admired his kind older brother. Ryuuhei, who witnessed the mysterious death of his brother, is now a cheerful high schooler who doesn't let the lurking nightmare surrounding faze him. One day, while kickboxing, he's bitten by a mysterious creature named Tris and has an unusual dream. He confronts his twisted desires as rumored "Drops" fly through the streets.