1 (PROMO)

- transmitted into a novel
- terminally ill character
- sold into the demonic cult for her family
- suddenly getting married to the young master

- return 11 year to the past
- discovered that her twin(who she thought was week) was working with her fiance to buy all of her property
- plan to get marry to the Grand Duke, national hero

novel: https://www.novelupdates.com/series/youve-got-the-wrong-house-villain/