Five years into marriage, housewife Satomi lives in Yokohama. On her way home from a lunch meetup with mom friends, she accidentally meets a shy virgin guy. Despite her prim and proper appearance, their chance encounter—his first mixed bathing experience and first kiss—sparks intense excitement, leading to consecutive creampie sessions. Watch her gradually open up through naturally unfolding moments woven into everyday life. Witness the captivating transformation of this pure, innocent woman.