Monica Eclair

Monica Eclair (モニカ・エクレア) is one of the secondary antagonists of the series. She is a human who collaborates with the Demon Tribe. She works for the Demon Lord to enslave humanity and is the responsible for manipulate the completely sociopathic former hero Arios Orlando to join the Demon Lord's army.

Personality
Monica is a manipulative and cunning person who was able to manipulated the completely deranged former hero, Arios Orlando of joining the Demon Lord's army. She strongly hates humanity despite being a human herself because of her family being betrayed in the past. It is later revealed that she is a descendant of the branch family of the original hero and thus was a hero candidate.

She is also treacherous and failure intolerant. She exposed Aggath's betrayal towards Arios where the former hero had Aggath killed by the demons. She also disposed Leanne under Arios' order without a second thought shown where she demonized the mage as far as Leanne was killed by Rein and his companions.

Relationships

 * Demon Lord
 * Arios Orlando