hi! i’m looking for a korean rofan manhwa where the MC transmigrates into the villainess (not very original i know), but just as she was being exiled to some sort of poisoned/cursed land. the guards escorting her try to end her but she falls into a river and survives. turns out she reaches those land/duchy i think, and can purify or absorb it. she purifies a plant spirit and they try to survive for a year or so. they are finally about to purify a path to a town to find resources. some other details like the ML (i think) is a white haired duke whose entire family were supposed gone because the villainess had something to do with it. the OGFL from the story is a princess, and the MC tries to make the storyline continue forward. the church is evil, the town she visited were turned into some sort of undead, which she purified and they live with her near the castle. the 2nd is disguising himself as a priest with the OGFL.
If anyone could find what it’s called, much appreciated!
