Seo Ji Ahn, a former rich girl, was forced to be her family's breadwinner after her father's bankruptcy. She is now a contractual employee and living her life with restrained emotion. The drama chronicles her struggles to find new meaning and happiness in life.

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.

Han Hyo-joo plays a surgeon whose father is a famous comic book creator. One day Dad goes missing and she rushes to his workshop to look for him, and instead finds a strange man bathed in blood. She gets kidnapped by the bloody man, which is where their story begins. The drama takes place in 2016 Seoul, but in different dimensions that exist in parallel with one another. It’s described as a suspense romance melodrama about “a man and a woman who are living in the same time, but different worlds.”

Lee Min Suk is just a normal high school hockey player - until he's forced to take his brother's place as the director for a major company. Now he's forced to balance school work, hockey practice, and making multi-million dollar decisions. No big deal?