Mary returned to his hometown after a long time of living in Tokyo. Because her parents were away, only Takashi's younger brother at home welcomed Mary. Unexpectedly in just a few years, her sister became a very attractive woman! Takashi could not take his eyes off Mary's hot body. Knowing that her sister was extremely naive, easy to believe in people, Takashi decided to cheat Mary to be able to fuck her! He lied that women who did not make love within three years, the hymen would close and return to being a virgin, this was called "a second virgin". Fearing the feeling of losing her virginity for the first time, Mary asked Takashi to check. Just waiting, Takashi Lien committed his wrongdoing with naive sister ...