He is currently living at his aunt's house. He enjoys reading as well as studying the history of music and structures of instruments. In time, he becomes interested in Kahoko because of her carefree music. Keiichi also shows interest of her because the music he plays always seems to be stuck in his head. Him and Kahoko usually encounter each other at musical events like concerts, showing of instruments, etc. Kahoko commented that when he smiles, he looks like an angel. He has an older sister, a younger brother and a younger sister. His older sister always sends him costumes to try on.