Kaori, the ace of the tennis club, just went to see a junior who hasn’t shown up to the tennis club lately… Although she was worried about her boyfriend, Masaya, Kaori was led to the room of her junior, Ami, and what she saw was… Ami holding a man’s object in her mouth. Kaori loses her virginity after being attacked by Ryo, Ami’s sex friend, and asks Masaya for help, but his voice doesn’t reach her… Kaori’s sensitivity increases with the estrous agent that Ami has, and she tastes it. Falling into endless pleasure…!