A girl who learned the mechanism of pregnancy through health and physical education. At the same time, what is a man's Ji Po? A simple question arises, and that curiosity goes in a surprising direction. If you can't understand it even if you think about it with your head, it's still the real thing. The girls who held a classmate boy's raw chin appreciation party with such a straightforward idea are attracted to the male pheromone that is emitted with its lustful shape, and their chestnuts are also estrus with a demon erection!