Takao Rukawa possesses messy light brown or golden blonde hair and brown eyes. His typical attire is a white T-shirt, blue trousers, and black shoes, complemented by a military medallion worn around his neck suggesting a possible background in military service. He serves as an assistant to Shigeo Ijuin, the torture sommelier who executes individuals evading legal justice. In this role, Takao participates in carrying out torture methods across various historical periods. He exhibits a refreshing and generally amiable demeanor, yet possesses a strong, uncompromising sense of justice. This leads him to show no tolerance for criminals or those he perceives as evildoers.