Survive as a Villainess by Hoarding Cash

Rhea wakes up inside the body of a villainess, a fake heiress from a wealthy family who is destined to meet her end within three years. Already weighed down by debt in her former life, she now faces a far more dangerous situation in a household that will not forgive a pretender. Her only real option is to build a cash reserve and find a way to outlast the fate written for this character.