For the A. R. World version or Kamen Rider Leangle 300 years after, see Mutsuki Kuroha and Satsuki. Mutsuki Kamijo (上城 睦月, Kamijō Mutsuki) is a young high school student who transforms into Kamen Rider Leangle (仮面ライダーレンゲル, Kamen Raidā Rengeru), doing so for some time while being possessed by the Spider Undead. He is a troubled high school student who proved compatible with the Leange Buckle, thus being personally chosen by the Spider Undead (Category Ace of Clubs) as its primary host. As a baby,