Zhou Xiaobing (Lin Kai) is an employee of a cleaning company. He is responsible for cleaning the office with his two friends Pipilong (Gu Youming) and Uncle Wang (Wan Li). Zhou Xiaobing has always had a "star dream", hoping that one day he will be the king of singers on the stage. But the reality is cruel. Although he has participated in many singing competitions, he has been rejected and ridiculed by the judges because of his ugly appearance and image defects. However, one day, Zhou Xiaobing ate a bag of magical chocolate and instantly became another person. This person is called Jin Chenwu (Chen Xi'an), who is very handsome. He continued his work as a cleaner without knowing that his appearance had changed. During his work, he was spotted by his agent Connie (Liu Yongjian), who dug him into the competition and made a rule that all the judges would regard Zhou Xiaobing as the champion. Zhou Xiaobing has always had an idol whom he admired, her name is Eva (played by Zhao Shuozhi). After becoming famous, Zhou Xiaobing and Eva met, and Eva was attracted by Zhou Xiaobing's handsome appearance and perfect singing voice when he transformed into Jin Chenwu, and her feelings towards him gradually changed subtly. Gradually, Zhou Xiaobing gained a lot of praise and support because of his identity as Jin Chenwu. He felt that he was already high above everyone else, and became more and more greedy for some flashy life. But in an encounter, a girl (played by Nian Xianer) cleansed his vain mind with a sentence. Should he return to his original self or continue to live as someone else? Zhou Xiaobing decided his final destiny...