Acer, the best good tree boy, is a maple wood nymph/junokko sort that plants roots in winter over the plentiful gravesites of the area. He chews on bones and processes blood into sugary syrup to make candies, pudding, and drinks for offal eaters. Though one skull he'll never eat is his business adviser/spiritual uncle Martain. He was around when Acer became sentient. He's already grown up so much though he still has youthful vanity and judgments.