The story
Betrayed by her fiance and her sister, she married the man everyone fears.
Wisteria is a nine tailed fox shifter, and the two people who betray her are her fiance and her adopted sister. So she takes her sister's place as the bride of the Serpent Lord, the one everybody is afraid of. He turns out to be the only one who has ever truly loved her. Wisteria becomes a legendary alchemist, and now her ex and her family are the ones begging her to forgive them. She never will.