The Ultimate Furnace: Traveling Through Three Lives and Three Worlds

Two people who are not related to each other, one is a top-notch furnace, and the other is a genius in cultivation. One soul wears another body, One is punished and reincarnated in the lower realm, and the other travels through time and space in the lower realm for cultivation; He is her doom, and she is his guardian; This is a story about the transformation of an ignorant girl into an intimate sister.