Kilkapul

He looks like an unassuming normal old dwarf. He has a bald head and a long brown beard tied together at the end. His nose is quite big and round and his eyes are blue. He wears a blue beret, a green shirt with a blue jacket over it. He has a brown belt and gray pants.

He seems quite friendly and calm upon first meeting him. He loves his family and is helpful towards customers. But since he works for the Demon Lord Kilkapul has a dark side, showing that he can also be cruel, arrogant, determined, intimidating and above all extremely devoted to his master, willing to kill his loved ones and himself for him. He is also observant and wise, as unlike the previous demons, he opted to watch Seiya (instead of attacking immediately) and realized Seiya had a power that went beyond logic or reason.

The party unknowingly met him at his item shop to buy torches at Izale village before they went into the Dragon's Den. When they return to the village, he is discovered to actually be a general of the Demon Lord (Gaeabrande) and has razed the village. He reveals that his summoned Adamantoise has destroyed the legendary armor they came for. He also shows the party the head of his wife and child, explaining that in order to stop the abnormally powerful Seiya, he has to resort to abnormal means, which requires him to sacrifice his village, family, and himself to summon Crossed Thanatos, a nigh-invincible monster. Kilkapul then slits his own throat to finish the summon.

As one of the four heavenly kings, he is quite powerful. Like Deathmagla, his main strength lies in summoning. However, unlike Deathmagla he seemingly cannot summon entire armies (or he chooses no to), and instead seems to focus more on the summoning of single, powerful monsters. He is also adept at a ritual summoning.