Lee Jonghyun is a handsome, smart student from Hanhwa Highschool of Seoul. He always be number one in both academic and sport. He is very mischievous and love to play a prank to another students. But his life changed when a beautiful transfer student came to his school and shared the same class with him. Gong Seungyeon is a transfer student from Japan. She is really smart and beautiful. She is expert in various martial arts and sports. Her presence become a serious threat to Jonghyun.

FNC is sold. The major stockholder changed. Entire top managements are changed. What will happen to them?

The two chaebol heir and heiress disguised themselves as  ordinary empolyees in a large company for uncertain reason. The fate arrange them to meet again and open the past that they never expect. Lee Jonghyun, an oldest son of Lee J Group begged to his grandfather in case that he could enter the company without anyone knowing who he is.  Gong Seungyeon, her true name is Yoo Seungyeon. The heiress of the GL corporation, one of the conglomerate in South Korea. She left her family