Michizō Tachihara is the fifth and final member of the Hunting Dogs special units, operating undercover as a Port Mafia mafioso and Black Lizard battalion leader. On the surface, Tachihara is an arrogant, impulsive, rash individual, more than willing to solve problems through sheer brute force. A prideful man, Tachihara despises being belittled. Tachihara is capable of thinking rationally. His identity as the fifth Hunting Dog reveals a much more clever, driven man. He likes pencils.