College sweethearts Ye Xi and Lu Chuan once "encountered" in the library and had a sweet confession after a basketball game. But Lu Chuan lost contact after saying "wait for me", and when he reappeared, it was news of his marriage to Su Qing, the daughter of the Su family. When Ye Xi was heartbroken, she didn't know that this marriage was a fake agreement made by Lu Chuan to save the family business. He secretly sent her a night view of Wutong and a bank card with a birthday code, just to wait for the opportunity to protect her. When Ye Xi faints, Lu Chuan breaks into the hospital to break the illusion. Can they overcome misunderstanding and reality and find their original pure love?