To breed endangered animals, the researcher uncle is developing a drug to induce estrus. His niece Sumire came up to Tokyo to prepare for university entrance exams. Sumire, who aspires to study pharmacy, accidentally gets splashed with a drug in development while touring her uncle's lab. It was an extremely potent aphrodisiac meant for African elephants or mountain gorillas! "Uncle, you're so hot! My body is on fire!" The estrus-stricken niece comes at him like a wild beast, seeking his cock!
