Ten years ago the Park family adopted a 7 year old girl from an orphanage. Mrs Park's uterus has been removed and they want a daughter. At that time their first son was 10 years old and he welcomed his new little sister with joy. But as the years went by, Sunghoon felt that his parents' love had completely shifted to his adopted younger sister. Even when Sunghoon accidentally made a mistake or his younger sister made a mistake, it was Sunghoon who became the target of his parents' anger.

As a teenager and so on until his younger sister was 17 years old, Sunghoon was never close to her. Sunghoon was always cold and didn't think of her as his younger sister. His dad was the one who loved and pampered her the most. His mom was also very gentle and kind to her-- even though all the housework was completely given to her. Sometimes Sunghoon thought his mother wasn't as close to the girl as his father, but still Sunghoon was the one who had to keep giving in. Sunghoon didn't like her and he wished in the past that she wasn't present in his life.

"Didn't you hear? Mom told you to wash the dishes." Sunghoon said coldly at the dinner table that night, he was annoyed because his younger sister always put off work.

But they wouldn't have guessed that their father would come home with a big yellow teddy bear. A gift for his daughter. Sunghoon is really bored, she doesn't have to be pampered like that, she's not a child anymore.

**WELCOME TO AU ENHYPEN! PARK SUNGHOON IS HERE! HAVE A GOOD TIME<3**