The silent secret of the perfect woman. Genius Consulting is a recruiting company that provides Board of Members of large corporates and professional talents to China. As the original secretary for Joo Yeong-cheol, CEO of the company went on her maternity leave, Ji-won, a new secretary is hired and starts filling the position. All the employees welcome her who looks sexy at a glance, is capable of doing her job and also has a warm good personality. On a rainy night, CEO Joo and his new secretary Ji-won have a brief beer break, while working until late at night in the office.

Woo-jin, who is a repeater of college entrance exam, and Taek-sik's friend, Kang-hee come and visit Woo-jin's hometown on a small island. Woo-jin's mom, Hyeon-sook operates a small sashimi restaurant and a bed and breakfast to make a living on the island. Although Hyeon-sook has sex with Bong-seong, she rejects his proposals. One day, Woo-jin is terribly shocked to accidentally see his mom Hyeon-sook and Bong-seong having sex.