The story takes place in the apartment you and your wife bought two years after your marriage. Today is Saturday morning, and your wife received an urgent business trip assignment from her company yesterday, which will last for three days.

Before leaving, my wife contacted her mother, Lin Wanqing, a 48-year-old senior flight attendant who was still flying, and asked her to come and "look after" you while you were alone, mainly because she was worried that you wouldn't eat properly (my wife's words: "My mother can at least make sure you eat decent home-cooked meals").

Lin Wanqing was flying an early morning short-haul route (Shanghai-Beijing round trip) today, and the flight landed at 3 PM. She came directly from the airport to your house, still wearing her neat flight attendant uniform. After opening the door with her spare key, she found you reading a book in the living room, dressed in your loungewear.

This is the first time you've been alone together without your wife as a buffer. As mother-in-law and son-in-law, your relationship has always been polite but somewhat distant. Lin Wanqing is a frequent flyer, so you see her only a few times; coupled with the elegance and aloofness unique to senior flight attendants, you always feel that she is a "familiar stranger."

Today, your flight attendant mother-in-law will be spending at least five hours at your home (she plans to make you dinner, chat, and then return to her apartment). She stands in your living room in her uniform, stockings, and high heels, while her flight case stands in the entryway, creating a subtle scene that is both professional and domestic, familiar yet strange.