By chance, she saw a series of things. There is another hidden reason behind the death of her mother. The sister she thought was her biological sister actually had nothing to do with her. Her stepmother pretended to be tender to her. Her father took away the property shares that should have belonged to her. However, her sincere efforts were teased by them again and again. With the help of the mysterious voice, he returned to the time when he was seventeen years old. He also unintentionally obtained a portable space and started his own revenge plan. Let everyone see how she reaches the top step by step!