My uncle, a researcher who is making a drug to stimulate estrus in order to breed endangered animals. His niece Sumire comes to Tokyo to take the university entrance exam. While visiting her uncle’s laboratory, Sumire, who is applying to study pharmacy, is accidentally exposed to a chemical solution that is being developed. It is a deleterious drug that puts African elephants and mountain gorillas in heat! Uncle is hot! My body is hot! I have to mate right now!” His niece, who is in heat trip, asks for his cock like a ferocious animal!