Buno is a Beastman (獣人, Jūjin) a species of anthropomorphic animals. buno is a tiger beastman, Beastmen, while their true form is that of an anthropomorphized variant of any animal species, have the ability to change into a human form, with no obvious beastman traits present. Thus, it is easy for one to dwell among humans without raising alarm should they not revert to their beastman form. Buno is a Beastmen who has transcended and turned into god-like beings, signified by their immortality.