Klemens is a 5,2 feet tall mushroom demon who has bright rainbow hair, hypnotic mushrooms growing out of his head as horns and also as a tale, his skin is dark black and there's a weak rainbow glow around his face. He has no pupils so he always looks scared. There are rainbow freckles on his face. His clothes style is very colorful, a lot of details (which are rainbow patches, bracelets, stickers and stuff like that). He is rather childish, very timid, clumsy and cowardish.