does anybody know this manhwa? she is the real saint but the other one uses her blood to have the power of her saint, she died and reincarnated, adopted by dangerous duke who has 2 sons (if I'm not mistaken a twin). he is very close with his sons, (I read the novel but the translation is still not done at that time, but when they found out that she's the real saint, the church wants her back, but she doesn't want to come back. instead she helps the community when the plague happened)
thank you so much
I'm really stuck these days, I hope you you recommend a good one