Tatsuya is a senior student of Seven Sisters High School. His immediate family consists of his unnamed parents and his older brother Katsuya. Due to an incident that led to his father's forced resignation from the police force, Tatsuya has been estranged from his family for some time. He has a pattern of skipping school with Anna Yoshizaka, his classmate.
Tatsuya uses two-handed swords. His initial Persona is Vulcanus, and his ultimate Persona is Apollo. Tatsuya always carries an engraved Zippo lighter with him; and is often shown flicking the lid open and shut.