Hiyori is a night monsters and one of the four protectors of the forest. His personality is switching between cheerful and playful very often. Most species of night monsters living in the forest find it peculiar that Hiyori's form is a house cat. But reality is that he's actually a stray whenever he visits the city. Never really visiting any houses. Weakness: Excessive exposure to light, staying in human form for too long exhausts him.