A widowed mother named Miho has raised her daughter Yurina alone since she was young. As Yurina grew older, she found herself a boyfriend—the second son of a local liquor store, a charming young man named Shinobu. Miho was delighted that her daughter had found such a kind and friendly partner. However, there was one thing she didn't know about Shinobu... he had a secret dark side.

一人娘の友理奈が幼い頃、夫が亡くなり、女手一つで友理奈を育てた美緒。そんな娘も年頃になり彼氏ができた。娘の彼氏は酒屋の二代目でとても気さくな青年だった。美緒はその青年が、娘の彼氏でいることを、とても嬉しく思っていた。ただ…青年には裏の顔があったのだ…。