≪Neat collaboration again! ≫A live-action version of the hit NTR doujin comic based on Marushin's original work! Keita and Saki have grown up together since childhood, calling each other "Kei-chan" and "Saki-chan" and aspiring to compete in the same swimming competition. They consider each other to be of the opposite sex and have a secret relationship as a man and a woman. When Saki learns that Keita plans to confess his feelings to her once he becomes a selected member of the swimming club, Saki consults his senior, Miwa, but her story is taken advantage of and Miwa takes her virginity. Sisters…. Collaboration with popular doujin works! Click here for the original doujin work “The whole story of how a neat childhood friend from the swimming club is played with by DQN”!