Des:Daichi, who lives with Maikas house, brings Michael, an exchange student, with her. Maika, who was interested in English, takes an interest in Michael, and the two get along well. Michael spills his drink on his pants and accidentally reveals his big penis. Maika was surprised by the size, which was completely different from her boyfriends, and was deeply interested in the big dick. As the two gradually begin to become aware of each other, they cross a line.