The man was originally very loving with his girlfriend, and often did some exciting love, including in public places. However, when the man went to his girlfriend's house to see the future mother-in-law, things began to reverse, and the first rushed into it. The mother-in-law’s bathroom made the man’s heart yy, and all this has just begun, because the mother-in-law also discovered his huge genitals...

Kyeong-joon is driven out to the streets as he can't afford the rising rent. His girlfriend Ji-hye takes pity of him as he has nowhere to go and offers him to stay at her house. However, the woman who greets them at the door is his first love Ji-yeong! Ji-yeong taught Kyeong-joon about love and she was Ji-hye's step-mother. Living under the same roof, he feels something for her again while his girlfriend is also hot.

A man starts a passionate relationship with his girlfriend's mother, leading to a series of intense and emotional moments.