The male protagonist and the female protagonist have known each other since childhood. The female protagonist moved away due to family changes and disappeared. When they grew up, they forgot about their childhood. The male protagonist is a son of a rich family. He was kicked out by his grandfather because of his personality and went out to rent a house by himself. He also worked as a low-level employee in his grandfather's company. When renting a house, he and the female protagonist accidentally rented a house together. Moreover, in the company, the female protagonist is still the male protagonist's boss. The second male protagonist is deeply in love with the female protagonist, instead of pursuing her, the second female protagonist knows the male protagonist's identity and likes him, starting a four-corner relationship. The male protagonist and the female protagonist gradually develop feelings because they live under the same roof. The second female protagonist knows that she keeps instigating the relationship between the two and embarrasses the female protagonist at every turn. Finally, she reveals the male protagonist's identity. The heroine, the heroine was angry at being cheated. The hero tried his best to explain that when the heroine forgave the hero, he accidentally got into a car accident, lost his memory, and then disappeared. The hero searched for a long time but couldn't find him. The hero became even more indifferent. During the period of the heroine's amnesia, the second hero took good care of her. The second hero wanted to dominate the heroine, so he concealed the fact. The heroine also fell in love with her. Two years later, the female protagonist suddenly regained her memory, but it was difficult for her to choose between the male protagonist and the second male protagonist, which made her very painful. Seeing her in such pain, the second male protagonist chose to give up and help the male protagonist and the female protagonist. The female protagonist went back to find the male protagonist and explained to him. The female protagonist tried her best to please the male protagonist, and finally the two reconciled and lived a happy life.