After waking up, the girl forgot everything and was rescued by a boy named Qiao Yu, who called her Lan. She attached herself to Qiao Yu's house to look for her lost memories. However, Qiao Yu's stepmother was mean to her. After coming into contact with Qiao Yu, an inexplicable feeling gradually developed between them.
In the fragments of memory, she recalled her beloved mother bit by bit. In her memory, her mother was a gentle woman with a warm smile. However, when she finally witnessed the split between Qiao Yu and her stepmother, the blood on her injured hand evoked the truth of all the stories, including the true face of her mother, the entanglement between her mother and father, and everything she had ever endured...