Qing and Kai left without saying goodbye and went to the United States for corneal surgery. Four years later, Qing came back and saw Kai with another girl, so she told Yiyang that she regretted going to the United States for eye treatment. Although her eyes were healed, her heart was broken again. Later, Yiyang and Qing made an agreement, and Yiyang became Qing's nominal boyfriend to piss off Kai. Finally one day, Kai couldn't bear it anymore. He told the truth. It turned out that the girl was pushed to the wall by Kai and hit her head on the wall. She suffered a concussion and was frustrated. In order to be responsible, Kai made an agreement with the girl's parents to take care of her until the girl regained her memory. Later, Qing forgave Kai after knowing the reason, and took care of the girl with Kai, but Qing didn't know that Yiyang had fallen in love with her. Later, Yiyang left this place for Qing's happiness. Qing and Kai are back together! One year later, on Valentine's Day, Kai, Qing, and Yiyang all found their true love! Finally live a happy life! !