Yami no Kemono, meaning 'Beast of Darkness,' is a manifestation of Guts' inner rage and bloodlust in the anime and manga series Berserk. This entity represents the darkest aspects of Guts' psyche, often urging him toward violence and vengeance. Serving as both a psychological adversary and a symbol of Guts' internal struggle, Yami no Kemono plays a crucial role in highlighting the protagonist's battle against his own inner demons, shaping his journey and moral conflicts throughout the series.