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![](https://image.tmdb.org/t/p/w200/eDrIot1LVixqDbf7QoHN5QJXcQZ.jpg)
Woo-yeol's friend, Do-jin, secretly enjoys a relationship with Woo-yeol's stepmother, Chae-dam. Do-jin enters the house while the superiority and inferiority are gone and has sex with her stepmother. Do-jin's wife, Nara, learns from Chae-dam how to excite a man...