Transmigration + period drama + golden finger + ocean
A lazy modern-day homebody transmigrates to the 1960s or 70s and meets the family's biological daughter, who has come looking for her parents. After being signed up to go to the countryside, she is sought out at unpredictable intervals by a time-limited golden finger. Anyone who wants to take it from her always ends up having inexplicably bad luck.
Once she has some money, she quietly does a few good deeds, too.
How does she gradually become a famous philanthropist?
