Camio, Minister of the Demon World and Deputy Demon King during Satan’s absence, rose to prominence as the first ally of the young Satan Jacob, guiding him as both mentor and tactician during the realm’s unification. When Satan departed for Earth, Camio assumed leadership to preserve unity, only to confront rising discord as factions fractured—loyalists坚信Satan’s survival clashed with the vengeful Malebranche clan.

Seeking clarity on the Holy Sword’s rumored impact, Camio ventured to Japan armed with a blade infused with a Yesod Fragment from Satan’s shattered horn, which temporarily preserved his demonic form. Ambushed by Amane Ooguro, he lost his magic and was reduced to a small bird. Discovered by Satan’s allies in Choshi, he regained strength and revealed the Demon World’s escalating turmoil.

In Japan, Camio aided the group in thwarting the Malebranche, wielding his sword to restore the demons’ true forms. This allowed them to convince Ciriatto, leader of the invading force, to withdraw and spread news of Satan’s survival. After neutralizing the threat, Camio sealed the interdimensional gate and resumed his ministerial duties, upholding order in Satan’s stead.

His role also involved mediating factional tensions and countering external interference, such as Olba Meyer’s manipulations. Through unwavering loyalty and pragmatic governance, Camio tirelessly worked to safeguard the Demon World’s stability amid internal strife and external dangers.