Popee doesn't treat Kedamono like an animal, though-he instead treats him like a creature with a mask that's pretending to be human, which is exactly what Kedamono is.
The thing is, of course, is that everyone knows he's an animal wearing a mask-though it's possible they're unable to tell what he is, exactly. In wearing the mask, Kedamono is intentionally disguising himself as a human, and disguising the fact that he is a wolf. Kedamono also sticks by him because, while he appreciates Popee for being shallow, he also recognizes that Popee is lonely, and doesn't want him to feel that way. Even when Kedamono's nature occasionally rears it's head, Popee doesn't look very deep into it, which makes Kedamono relieved, and makes him feel safe to be around. He has no interest in what or who Kedamono really is, and feels that, ultimately, Kedamono is just Kedamono. The reason Kedamono follows Popee is because Popee, as self-absorbed as he is, doesn't care to look further than Kedamono's mask. His mask becomes very different, with color and rather scary expressions. There are times when this can be seen in the show, such as in 「ESCAPE SHOW」when Alien destroys the fried chicken he had used to get Kedamono to inject Popee. Even he doesn't exactly know what it is, though, and that scares him. Kedamono wears a mask because he's afraid of exposing his true nature, which is that of a "beast" (this may literally mean he's disguising himself as a human with his mask, and he's disguising his true nature as a wolf). Though his patience (especially concerning Popee) is considerable, he has several moments of bitterness and unwillingness to help Popee, possibly due to the foul treatment Popee tends to put him through. He also appears to have an egotistical streak of his own-despite it not nearly rivaling Popee's-as he has unwisely goaded Popee on during shows of skill. Though, if offered a chicken leg, he forgets his morals and will do almost anything to have it. Kedamono seems to the kindest and most caring of every character, showing his concern every time someone was injured, or when something was destroyed. This is also hinted at (if not accidentally) in-show In certain angles, his eyes can be seen from behind the mask, resembling small simplified black dots.
As Ryuji Masuda has stated before, this is not the case. Some fans have mistakenly interpreted the lemon slices as Kedamono having multiple eyes. In episode 29, 「DARK SIDE」, Kedamono is shown wearing a lemon pack. looks like his mother's."ĭespite Kedamono's face never being fully revealed, there is a bit of confusion regarding his eyes. The first (and only) to have ever seen his face underneath the mask was Frog, who claims, " Kedamono's face. Kedamono is a purple-furred, anthropomorphic wolf that wears orange boxers with a yellow star pattern on top and an ever-changing Noh mask that matches his current expression (as in, whenever his real expression changes, the mask falls off to reveal another one that reflects that.)