Marry a man with a stepson. Although her relationship with her husband is harmonious, she still can't get close to her introverted stepson Haruki… Just then, at her husband's suggestion, they go on a hot spring trip, and the two finally start to close the distance between them. However, Haruki, who secretly desires her, can't hold back and attacks her while she sleeps. Driven by youth and momentum, his forceful caresses make Rina writhe in agony. The sex, perfectly compatible, is something she's never experienced with her husband, and her body unconsciously aches for his cock…
