Female protagonist, a young woman from a wealthy family who has been engaged to Gu Qishen for five years. She is beautiful, proud, and was once deeply in love with Gu Qishen, believing their childhood sweetheart relationship was unbreakable. After discovering his infidelity, she decisively ends their engagement and plans to marry Xie Jin instead. She experiences a stabbing incident and then time-travels back to her high school days, determined to change her fate and protect her brother Zhu Huaiqian from his tragic future.
