Rika began dating her childhood friend Hikaru after he confessed his feelings, but his small dick was so insignificant that Rika barely noticed it. Meanwhile, another childhood friend, Saburo, also harbored romantic feelings for Rika. One day, Rika accidentally saw Saburo's dick and was shocked by its massive size. As she touched the drunken, unconscious Saburo's body, he regained consciousness. Unable to find satisfaction with Hikaru's tiny cock, Rika's relationship with Saburo takes a sudden turn, leading to intense creampie-filled encounters.