Gu Lei, a 45-year-old top real estate salesman, was forced to sign a three-month "life support contract" with Party A's eccentric grandmother in order to win the agency rights of a sky-high-priced retirement community in the middle-aged desperate situation of unemployment and debt. After moving into his old house worth hundreds of millions but full of inconveniences, Gu Lei relied on the professional vision of a top "real estate doctor" to gain insights into the pain points of aging, broke the ice with subtle modifications, and set off the Internet with documentary-style vlogs. From being a contractual escort who was always making things difficult for him, to creating a new track of "personalized aging-friendly transformation", he not only protected the old man's former residence and dignity, but also found a second spring in his career and life in the cold real estate rules.