Nineteen-year-old, Jin-goo enjoys an erotic moment to himself while thinking about his pretty English tutor. Then one day, he is caught in the middle of an embarrassing moment and becomes awkward with her. However, this becomes an opportunity and she starts teaching him sex. Their replationship becomes an uncontrollable romance. However, she quits the tutoring and the relationship to get married.  Time goes on and Jin-goo is a grown up. He's used to thoughtless sex. However, his partner of benefit gets pregnant so he meets his future-mother-in-law to talk about marriage. However, she's so beautiful and sexy. He moves in with the in-laws but soon breaks out of the marrige due to his wife's fling. The mother-in-law doesn't know how to make it up to him for what her daughter has done. Jin-goo suggests something dangerous...

Jeolmeun eomma

Fair skin, red lips, big breasts and a thin waistline as well as a big butt; In-hae used to have men eating out of her hands with perfect looks and amazing techniques. One day, she is rivaled by Ahn-hyeop with bouncy blonde hair, blue eyes and long arms and legs. She's from Ukraine and draws the attention of all the men. In-hae is upset at her appearance. She attempts to attract the men back with a more seductive method.