Takatora Kureshima (呉島 貴虎, Kureshima Takatora) is a research development leader at Yggdrasill Corporation who transforms into Kamen Rider Zangetsu (仮面ライダー斬月ザンゲツ, Kamen Raidā Zangetsu, lit. "Slaying Moon") and later Kamen Rider Zangetsu Shin (仮面ライダー斬月ザンゲツ・真シン, Kamen Raidā Zangetsu Shin, lit "True Slaying Moon").