Liu Zhe and the flight attendant's wife, Qiqi, spend less time together and more time apart. One day, he found that Qiqi had a QR code on his shoulder. He followed him to the plane and saw people queuing up to go to the bathroom. Pushing open the door, he found that Qiqi was an air doctor who carried out a high-altitude depression healing project. They buried the hatchet and joined hands to help patients fight depression.
