Zhezhuworks as a worker in a construction company. He is an illegitimate child. Although he has a mother, he has never enjoyed the warmth of the family. His dream is to become an architect. Xiuzhen is the daughter of the rich, living a life of fine clothes and food. Soohas very serious amnesia. It is common for her to leave her things and wallet in the store when she goes to the convenience store to buy things. One day she left the coke and wallet in the store as usual, and when she remembered, she immediately turned back to the store to pick up the things. The moment she entered the store, she saw a man with a glass of Coke in his hand. The man was sloppy and sloppy, with a jagged beard on his chin, and his clothes were a little shabby. At first glance, he knew he was poor. The homeless man, Xiuzhen believed that his Coke had been stolen by this man, and couldn't help but rushed forward to grab the Coke and drank it cleanly. After drinking, he hiccupped a few times. Xiuzhen proudly stretched the empty Coke can in front of the homeless man, turned and walked towards the bus station. As soon as she got into the car, Xiuzhen suddenly remembered that she hadn't taken her wallet. Back at the convenience store, the shop staff saw Xiuzhen and handed her the wallet and Coke. It wasn't until then that Xiuzhen realized that he had blamed others, but the tramp had long been gone, and God finally gave Xiuzhen the opportunity to say sorry. The exhibition hall of Sujin Company needs repair, and it is the man who came across in the convenience store, his name is Cheol-soo. But Cheol-soo seemed to turn a blind eye to Xiuzhen, and saw that he took the Coke he had just bought in Xiuzhen's hand, drank it, and hiccuped like a demonstration. In the evening, Sujin was robbed by a thief on the way from get off work, but fortunately, Cheol-soo passed by and beat the wicked away. The fate of the two began like this.
Over a period of time, the two fell in love with each other. Because of his poor background, Zhezhu didn't dare to confess and promise easily. Sujin took the initiative and actually proposed to Cheol-soo, "I want to marry you!" "You fool, what do you think of me?", Cheol-soo finally accepted Su-jin’s "suggestion" and they got married.
After marriage, Xiuzhen's memory began to fade away, as if she had been erased by an eraser. The lunch she prepared for Chel-soo was only two boxes of rice, and she had forgotten the way home every day after she went out. In Cheol-soo's eyes, all of this is part of Sujin's "cute", but Sujin began to worry. In order to clarify the cause of her illness, Xiuzhen went to the hospital for an examination, and received the news that she had Alzheimer's disease and her brain was gradually dying.
Xiuzhen finally completely lost her memory. She wakes up every day without knowing the man next to her. Every night before going to bed, she will find that she is in love with this stranger.
