Nanami feels like a third wheel when her friends Megu and Sousuke invite her to the beach, only to leave her with Sousuke's younger brother, Yuusuke. Initially disappointed, she discovers Yuusuke's cuteness and decides to make the most of her beach day, seeking her own romance in her sexy new swimsuit.
After going through a strange and rigorous interview process, Higuchi Takumi is hired to be the manager of Wani Productions' newest and hottest up and coming idol, Hamano Ai. While having the usual bullet points of what makes a great idol, Ai's body along combined with her look become a smash hit with fans. One small problem, however, is while idols are supposed to be chaste and pure, Ai's desires are out of control! Takumi can try and extinguish her desires, but Ai's cravings grow to a point of no return.