Synopsis：The heroine is an ace agent. After completing the mission, she obeys the organization's arrangement and goes on a blind date to get married to hide her identity. She goes on a blind date with the CEO hero who also hides his identity and then gets married. After marriage, the heroine receives a new mission to assassinate a mysterious rich man, who is the hero. The hero and heroine try every means to hide their identities and compete with each other in wits and courage every day.