Aya has no blood connection with her husband ● A mediocre housewife who lives with her son-in-law, a school student. Although she was sexless with her husband, she still had happy days. One day, Aya notices that her breasts are bigger than before. At the same time, the unusual hot flashes and ease of feeling ... Aya who is lightly treated by her husband and has a hot chest. Meanwhile, my husband's business trip was decided, and it was decided that I would live only with my son-in-law.