Shen Jiacheng was a talented girl from S Middle School in Los Angeles. She was admitted to Z University in her first year of junior high school, but she never registered because of an appointment she made when she was young. When she was 11 years old, she was in a car accident and lost her memory (only remembering the agreement). A couple claiming to be her parents told her that her name was Shen Jiacheng, which she firmly believed. A new classmate was transferred to the class. His appearance made Shen Jiacheng's life experience once again confusing. He said that Fang Tinglan was the daughter brought by his stepfather and was his sister. The proof was the obsidian bracelet on her hand. Fang Yinxuan also had the same bracelet. Shen Jiacheng didn't believe everything he said. As the truth emerged, an inexplicable feeling developed between them, but the truth separated them again: Fang Yinxuan's mother Luo Yinyue was the culprit of the car accident that year. So, how should Shen Jiacheng face it?