Kaede is not aware of it but no matter how you look at it, she is a yankee girl... One day, she helps her childhood friend, Kiyohiko, a weaker boy who is younger than her who is being mugged in the park and invites him to her apartment to wash his short and dirty pants. Kiyohiko is grateful to Kaede for being cool and kind but when he sees Kaede's butt, he becomes aroused and hugs her. Naturally, Kaede beats him up but Kiyohiko's sexual desire explodes and he can't stop! Kiyohiko is a virgin but he makes full use of the knowledge he gained on the Internet to attack Kaede! After making Kaede cum lightly by licking her feet, he shows off his greatest weapon. Yes, Kiyohiko has an extremely large penis! Kaede has little experience with men and it is her first time cumming and seeing a large penis, so she is in a complicated state of mind with fear, interest and pleasure from this unknown experience. However, Kaede has always treated Kiyohiko like a subordinate, so her pride wouldn't allow her to be made to cum by Kiyohiko... But!! Kaede's weak pussy is nothing more than a baby in front of his huge cock! The Yankee girl Kaede is made to cum over and over again by a weak man and is creampied many times, becoming a total loser... Will their relationship change!? Or...