An extraordinary road to emotional healing opens up for an antisocial children's book writer and a selfless psych ward caretaker when they cross paths.

Our heroine will have the unfortunate ability to see the “life clocks” of everyone around her, including herself, and the hero will somehow be able to stop her “time” without lifting a finger. This story will follow time that is stopped, extended, and even erased through the love they have for each other.

Hong Ra On, disguises herself as a man and counsels men on dating. Due to a love letter she wrote for a client, she meets Lee Young - future Crown Prince Hyomyeong. Hong Ra On is unaware that he is the Crown Prince and Lee Young is unaware that Hong Ra On is a woman. The Crown Prince becomes interested in Hong Ra On. His eunuchs become aware of this and attempt to get Hong Ra On to become one of them.

Yoo So Joon owns a real estate company worth 200 billion won. When he sees his future self living unhappily, he decides to avoid that fate by marrying Song Ma Rin without love. While their start is a fake marriage, he sees that his wife gets hurt because of him, and it starts to distress him. Slowly he will be falling in love with her, despite marrying her for selfish and loveless reasons.