Bodybuilder‑like wrestler Genzou Shibata carries a mountain‑sized frame, yet underneath his imposing bulk lies a man who adores animals. In the squared circle he dons the legendary "Animal Mask," channeling a tiger spirit that captivates audiences worldwide.
While fighting for the World Championship against his fiercest foe, the Macadamian Ogre, a princess from another realm beckons him to her world. Her kingdom is besieged by monsters, and she begs the champion for aid—Genzou responds by delivering a crushing German suplex that knocks her out! After escaping the castle and finding himself stranded in an unfamiliar land, he resolves to become a beast hunter, capturing and befriending creatures across the realm. Together with wolf‑girl Shigure, dragon‑girl Hanako, and vampire Carmilla Vanstein, the wrestler tackles perilous quests in pursuit of his ultimate goal: opening a pet shop.