What about It’s not my family yet! Min-joo lived alone with her mother without her father. One day, my mother introduces a person who will become my step-dad. And even his new brother... After a while, Min-joo lives with his mother at his step-dad's house. She tries to release her confused mind through sex with her boyfriend, but her mind is still empty. However, Min-ju, who was increasingly attracted by the warm heart of her new brother who lived with her, He stretched out a hand of temptation to tell him the sex, The two gradually develop into a relationship more than a sibling...​

Think about us, not mom or dad. I want to be your man, not your brother. Jae-hee has been with so many men who have made her experience worlds better than her first sexual encounter. She was beginning to get tired of men when her mother got re-married with a man who has a son named Yoon-jae. Jae-hee is attracted to him. In the end, they fall for each other and become something more than 'brother and sister'. Then one day, Jae-hee's mother gets pregnant and things get complicated...

One day Pavel, a young man wounded in the war, suddenly shows up at the home of a Moscow scientist name Krymov and claims to be his illegitimate son. Krymov denies this, but out of compassion he helps arrange a necessary operation for Pavel. Then certain things begin happening which suggest to Krymov that he may have a psychologically unstable fellow on his hands.