These drawing I did for my story "The Mora" (October 2025). It's Temari as the ancient creature -or spirit- the Mora and a sketch of her as a child (in the story it's made by Shikamaru's late relative).
I used screenshots from the anime as references. And I can look for them if anyone wants to see them.
Spirit Eaters, also called Ghost Eaters in some texts, were a species that quite literally fed on a person’s Spirit, leaving them in a state of wasting that would eventually prove fatal. According to legend, the creatures resided in a state of limbo between this world and what lay beyond the Moira (the “veil”) with no true shape of their own, though there are stories of them taking on the form of animals in pursuit of their prey, an ability called “Spirit Walking”. This paired with their capacity to temporarily take on the traits and abilities of their latest victims made them unpredictable and sometimes quite dangerous.
There are dozens of different stories as to where the species originated, but no one (known) knows the truth. As False Immortals, Spirit Eaters are perhaps the only subject Soul Collectors and Reapers have agreed on in at least 500 years; once it was learned how to kill one, the two groups combined forces to eradicate the species.
How they managed to kill one of the creatures has, as far as I’ve been able to find, been lost to the ages.
My theory on the wasting state of victims:
A living being can survive without a Spirit so long as the Soul remains intact. This combined with information from a few of Alix’s old journals detailing a few of her own Spirit Eater hunts, leads me to conclude that what then was recognized as a wasting disease would, with modern medicine, be treated as a coma. While this might seem like evidence against the eradication of the species, the victims of Spirit Eaters would never have recovered even with today’s medicine as once a Spirit is consumed, it cannot be recovered.