Su Ruantang became famous with an ancient style song, but she was bullied online because her "loli appearance did not match her ability" and was urged by her family to give up her dream of acting and return home to get married. When she was desperate, she bumped into the "innocent businessman" Lu Shiyan. In order to stop the family from urging her to marry and change public opinion, the two signed a love contract. I thought everyone was getting what they needed, but I didn't expect that Lu Shiyan's "pretending to be innocent" mask was all flirtation, helping her to fight against her green tea rivals, uncover dirty information on the Internet, and help her stand firm on the stage. Under his protection, Su Ruantang overcame the doubts of the outside world and realized her musical ambitions. She gradually realized that in this contract, someone was sincere.