The star pilot Chu Fei's return with honor has set a goal for the new pilots to catch up with. As a new pilot from a flying family, Lin Shu was the first to stand out among the newcomers, but he was used to exposing himself, but was speculated, dissatisfied, and even disgusted by his peers. Even Cheng Cheng, a newcomer in the flight service team who has always been hardworking and selfless, avoided him. After knowing the reason for Cheng Cheng's "mask", Lin Shu began a rescue plan. Unfortunately, the plan was successful, but Lin Shu, who was unable to face his emotions, separated from Cheng Cheng. A year later, the former new observers have grown into co-pilots at all levels, accompanying each other to complete flight missions in the blue sky and supporting each other to solve the problems encountered in life. A new batch of "Xiaofei" came to report, and Cheng Cheng, who had a new look, reappeared in Lin Shu's world. When they met again, Cheng Cheng took the initiative, and Lin Shu also chose to face love and mature after going through the test.