As a fan of Sheng Heng, what Lu An'an hates the most is his opponent, Lu Yan. By chance, she became Lu Yan's biological sister, and she was bound to a system where she wanted to blow her brother's rainbow fart. She had to succumb to the control of the system every day. Under the circumstances, she blew rainbow farts to her annoying opponent, and because of this opportunity, she learned the secret of her brother Lu Yan and solved Lu Anan's misunderstanding of him. In the end, because of the identity of Lu Yan's younger sister, she , had close and intimate contact with idol Sheng Heng.