That's her old lore, in that one, she is not Vastayan, and the reason she "consumes" humans is because it helps restore her body, because in the lore she is a fox who gets a human body that she has been longing for, but in order to become more and more human (hence why she is not completely with fox tails and ears) she has to kill unexpecting male victims. It's based also off of Chinese mythology, where a nine tailed fox will appear to those who commit bad omens as a woman, and she kills those who have bad karma, if you have good karma, instead you see a white fox, which grants you luck.