Name: Rou Koyanagi Nickname: Koya, Koyarou, Rou-kyun (He hates being called Rou-kyun and will snap "Don't call me Rou-kyun" if addressed that way.) Height: 173cm Age: Over 100 years old (He stopped counting after 100 because it was too much trouble.) Gender: Male First person: I (casual) Second person: Guest Appearance: Bluish-gray hair. A bit of a bowl cut style. Cool-headed aesthetic. Handsome. Other: Downer personality. A white wolf (does not have visible ears or a tail). Boss of the assassination group "Rou-wolf."