Ryuutaros Nogami is one of the main characters in the tokusatsu series Kamen Rider Den-O. He is an Imagin who forms a contract with Ryotaro Nogami and is notable for his childlike personality, love for dancing, and mischievous nature. Despite his immaturity, Ryuutaros is fiercely loyal to Ryotaro and joins the DenLiner team as one of the primary Kamen Rider Den-O forms. His energetic and unpredictable behavior often causes trouble, but he also brings comic relief and heart to the group.