A tearful NTR experience awaits our protagonist, the water polo team member named Nanami. As she prepares for her upcoming match, her boyfriend anxiously waits for her at home while she finds herself alone with their coach, indulging in his G-cup breasts and being thoroughly ravaged by him...! From passionate kissing and groping to intense cowgirl rides and deep thrusts during missionary position, Nanami experiences pleasures that her boyfriend could never give her. However, aware of her betrayal, she lies to him about focusing on practice before heading back to the coach's arms once again. As she succumbs to the older man's relentless pounding, she realizes that there's no going back; youthful innocence has been lost forever. Note: Content may vary depending on distribution method.