A romantic and youthful story of Ahn Tae-pyung, a handsome and high-spirited boy who's taking care of his grandmother and four siblings after his parents passed away, and Jo Ara, a wealthy girl who has a crush on him.

The trendy coming-of-age drama talks about conflicts, love and friendship among friends who attend a same prestigious high school in Gangnam, Seoul. Ahn Tae Pyung is a responsible teenage boy in charge of his family's livelihood, who is also good looking. He never loses his hope while coping with his tough life.