The uncle of a researcher who creates a medicine that encourages the estrous period to breed endangered species. My niece, Sumire, came to Tokyo for her university entrance exams. Sumire, an aspiring pharmacy student, is accidentally exposed to a chemical solution under development while touring her uncle's laboratory. It was a powerful drug that made African elephants and mountain gorillas go into heat! "Uncle is hot! My body is hot!" "I have to copulate now!"