My father remarried a beautiful woman who was almost the same age as me. – My father, who is busy with work and tends to leave the house, will have more time for me (Yui Kawagoe) and her young mother-in-law Kanna (Kanna Shinozaki). – One day, Yui who saw her mother-in-law’s masturbation gradually embraced emotions that she had never felt before … Kanna Shinozaki’s long-awaited lesbian ban work!