Fifteen years ago, Shiyan Tan's parents died while saving the Gu family, leaving behind a 6-year-old Shiyan Tan. The couple took 6-year-old Shiyan Tan back home and raised her. Shiyan Tan liked her eldest brother since she was a child, but a sudden car accident caused Shiyan Tan, who had loved her eldest brother for fifteen years, to lose all her memories. After she woke up from a humble pursuit of love, she gradually fell in love with Gu Yanjun, but she was completely unfamiliar with her eldest brother Gu Yanming, whom she once had a crush on. She no longer carefully pleases, no longer chases that impossible man, she lives freely and truly. However, when she no longer cared, Gu Yanming began to panic. He thought he had finally gotten rid of this heavy secret love, but when he saw her smiling at Gu Yanjun, he felt inexplicably disappointed. Jealousy, angry, and unwilling, he began to realize that maybe he had lost more than just a girl who loved him. Is amnesia the beginning of a new life or an emotional trap? When the gaps in her memory are gradually filled, and when the entanglement between the three becomes deeper and deeper, who is the person she is destined to be?