僕を女手一つで育ててくれた、最愛の義母が最低な友人に寝取られて… 篠田ゆう

The story follows a young man and his deeply devoted stepmother who raised him as a single parent after his father passed away. Having sacrificed her own youth and personal life to ensure his well-being, the bond between them is incredibly close. However, this domestic peace is shattered when the protagonist's "worst friend"—a man he trusted—begins a calculated and predatory affair with his stepmother. The film explores themes of betrayal, the corruption of a nurturing maternal figure, and the emotional devastation of the protagonist as he realizes the woman who sacrificed everything for him is being taken away by someone he once called a friend.