Her sister is very weak. As her twin sister, she will always protect her, always... Her promise has become her obsession, but her dedication is the pressure exerted on her sister. Her parents died, she was adopted by a rich aunt, she is not docile, and her docile sister has become a strong contrast. The aunt's disgust, the uncle's impatience, all the factors will lead to her committing crimes in the future? In the end, her sister went to jail for her and died for her. Regardless of whether she loves her or not, she must pursue what she loves in her heart. Regardless of whether she loves her or not, she must pretend to be her obedient sister... Abandon her boyfriend and abandon her dream... In order to fulfill her sister's dream of becoming a star, she embarks on the entertainment industry and embarks on a career as a singer.