The Ghost King's Wife, I Am His Heart Treasure

Something happened to my brother, and grandma wanted to sacrifice me alive just to save him. That night I was forced by him and became his wife from then on... All ghosts and monsters want to eat my soul. They say that if you eat my soul, you can practice cultivation for ten thousand years and live as long as the heavens. He is arrogant and cold, but he is only kind to me. That night I was involved in a chase, accidentally recognized a master, and since then I have been involved in one strange mission after another. Collect ghost servants, catch evil ghosts, and destroy evil demons... This journey is difficult and dangerous, let's see how I can resolve it one by one...