Modern office worker Qi Yu and team leader Xu Ping both perish in an elevator accident, their souls unexpectedly time-traveling back to the resource-scarce northern courtyard of the 1960s. Reconstituted as a pair of impoverished step-siblings with no shared biological parents, they each awaken golden fingers: Qi Yu possesses the "Daily Random Takeout Blind Box," specializing in high-fat, high-calorie cooked dishes and heavy meals; Xu Ping holds the "Daily Random Express Blind Box," endlessly producing cross-era industrial tools and consumables. With advanced wisdom and top-tier industrial logic, the brother and sister get rich and lead the whole family to a good life.