22歳新妻。見た目同様に可愛い女性で、夫とは半年前に結婚したが、介護が必要な義父と3人で暮らしている。しかし夢見た結婚生活は決してして幸せとは言えず、夫の浮気や義父の世話に疲弊し悩んでいた時に、ヘルパーで来ていた畑中の優しい言葉に惹かれながら、萌衣は性の魔力に取付かれM女へと変貌していく…。A shiny, new, 22-year-old wife. A woman as pretty as she looks. She and her husband got married six months ago, but they live with her father-in-law who needs care. However, the marriage she dreamed of was not a happy one, and when she was troubled by her husband's infidelity and caring for her father-in-law, she was attracted by the kind words of Hatanaka, a caregiver, and was transformed into a submissive woman under the spell of sexual power…
