In order to investigate the truth behind her brother's "accidental" death, the heroine Su Wan transforms into a cleaning lady to get close to her brother's close friend and extreme sports superstar Jiang Jin. Jiang Jin suffered from an emotional disorder due to childhood shadow, and regarded Su Wan as a safe "secret lover" and gave him shelter. In the process of collecting evidence, Su Wan discovered that Jiang Jin might have been framed by someone close to her (business partner/brother), and she was unexpectedly pregnant. When Jiang Jin discovered Su Wan's true identity and purpose, he fell into a rage of being deceived, and the relationship broke down. At this time, the mastermind behind the scenes (the villain's secret lover) appeared and attempted to completely destroy Jiang Jin. Su Wan risked his life to obtain key evidence, and finally joined forces with Jiang Jin to expose the conspiracy in the extreme arena and at the critical moment of life and death, and complete two-way redemption.
