No Ki-jun, an employee at an insurance company, decides to develop a divorce insurance policy after personally experiencing three divorces that impacted his life and finances. Despite potential biases, he believes divorce is an unforeseen disaster and establishes a team for divorce insurance.

The story follows a character from the Joseon Dynasty who travel 400 years into the future to the modern era and unwittingly open a restaurant, leading to a series of comedic and chaotic events.