The CEO's Secret Lover

No Go Jin is the most popular mathematics instructor in the private education field and the CEO of GOTOP Education. Even though he has only a high school level education, he has achieved all of his success due to his extreme intelligence. He seems like a perfect man with a handsome appearance, high IQ, and wealth. He is also narcissistic. One day, he is suddenly warned that he will be murdered. Lee Shin A works as No Go Jin’s secretary. She is a diligent and responsible employee. Due to her quiet and introverted personality, she has little presence with her boss No Go Jin and her colleagues at work. Her colleagues begin to recognize her, because she has worked for the notorious No Go Jin for more than 1 year. She then learns that she does not have much time left to live.

Lee Young-joon's family runs a large company and he works as the vice-president of the company. He is smart, rich and handsome, but he is arrogant. His secretary is Kim Mi-so. She has worked for him for years and she is perfect for him, but Kim Mi-so decides to quit her job.

In disguise as her friend, Ha-ri shows up to a blind date to scare him away. But plans go awry when he turns out to be her CEO — and makes a proposal.

A romantic comedy about Joo In-ah, a charismatic audit department head with a secret, and Noh Ki-joon, the department's ace who is suddenly demoted to deal with the company's scandals.

When a telecom executive develops face blindness, he mistakes his secretary for a wealthy heiress -- which she allows to get out of hand.

Mark leads a team of office workers whose memories have been surgically divided between their work and personal lives. When a mysterious colleague appears outside of work, it begins a journey to discover the truth about their jobs.