Region of origin: Japan
As with many yokai that were inanimate objects which had achieved autonomy, the jubokko were once ordinary trees that happened to be growing at the sites of battles with massive casualties. The blood from the fallen warriors soaked into the tree’s roots and as they fed they eventually gained sentience, and a hunger for more blood. The jubokko would grab anyone who ventured too close with arm-like branches, pierce their bodies and drain out the blood, discarding the remains to their roots where birds would come and pick them clean, leaving piles of bones to build up around the jubokko’s base.
Originally posted on Tumblr on September 23, 2016