A man's virginity is discovered in class and he is ridiculed by the girl he has a crush on. The man desperately wants to have sex, so he kneels down and begs his slutty childhood friend Matsuri to help him lose his virginity. At first she is hesitant, but she agrees, saying, "As long as a condom is used." He somehow manages to find his father's old condom and has sex for the first time, but his clumsy thrusts break the old condom and he ends up having sex without a condom. He can't stop thrusting at super high speed, and he cums inside Matsuri, who has a spasmodic orgasm, over and over again.