Is Guts a Demon?

Guts is a man in constant conflict with his own inner darkness, which manifests as the ever-tempting Beast of Darkness. ... Even as his inner darkness festers deep within him and its temptation becomes increasingly harder to resist, he retains his empathy and compassion, refusing to discard his humanity.

What demon is inside Guts?

The Beast of Darkness is the manifestation of Guts' wrath and bloodlust, born from the trauma of his experiences during the Eclipse and his intense vindictiveness toward demonkind. As an amalgamation of the swordsman's malice, it relentlessly attempts to overtake his mind.

What are Guts powers?

Guts has incredible strength and physical resistance, even though he is a regular man with no powers. Due to his extensive training since a very young age, his strength and endurance could be classified as superhuman. He is able to swing the large Dragonslayer with incredible speed, even with just one hand.