Under a fortuneteller's advice, Pi Ya Nuo has been living as a man for 25 years and is looking forward to living as a woman. One day, she rescued a mob boss Du Zi Feng and his sister. The sister fell in love with her. And Zi Feng became her sworn brother. As her 26th birthday approaches, she must decide if she wants to return to a woman or continue to be Du Zi Feng's best pal.