Newhalf rising star Araki Rena faces her first-ever experience of losing her virginity. For Rena, who has never closely seen female genitalia before, the first vaginal penetration presents a major challenge. Having always been attracted to men since childhood, she now strives to turn her fantasies into reality. After undergoing special training sex to prepare herself, she finally moves toward her first full intercourse. With her penis fully erect, Rena nervously takes this bold new step forward.