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 manipulating the completely sociopathic former hero Arios Orlando to join the Demon Lord's army.

Personality
Monica is a manipulative and cunning psychopath who was able to manipulate 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. She was also ordered by Arios to kill Mina for betraying the ex-hero (or rather he betrayed her and the others due to his true filthy nature) and formed an alliance with Rein and his companions of her new goal of killing Arios, which inevitably happened when Mina and the Holy Church's archbishop were killed by the demons.

Relationships

 * Demon Lord
 * Arios Orlando