The Love of a Human and a Demon: The Fox Immortal

[This story is a huge pit, and I probably won't fill it in the next two years. Little angels, think carefully before adding it to your favorites.] Hu Xiaoxian has just reached adulthood and learned to take human form. Because of her fox-demon family's unusual constitution and history, she must descend the mountain and gain experience by digging out the hearts of 999 evildoers before she can continue her path to immortality. After a last-minute crash course from her second sister, she sets off full of confidence. As soon as she reaches the foot of the mountain, she runs into a scholar who is "a beast in human clothing." She tries to seduce him and take his heart, but then...