Rion and Hiroaki, who are classmates, are rare for couples nowadays, and still have a pure relationship that only kisses. During the summer vacation, Rion came to Hiroaki's relatives' house without telling her parents, but they had the habit of 'tasting' all the women in the family who would be lovers and brides. They look at her Rion's cuteness and her beautiful breasts, and they corrupt her in various situations. She is thoroughly groped with her small breasts, and when she notices it, she blooms masochistic, and she wants to have her own sexual intercourse.
