Claire sprite Spoiler Alert: This article or section contains details about plotlines not covered in the anime. Do not proceed unless you wish to be spoiled.

Solomon Yerusian, only known as Demon King Solomon in history, was one of the few and most notorious male elementalists in history. He raged war on the entire continent with seventy-two powerful spirits under his command and thus brought chaos and destruction to the continent.

He would meet his downfall in the hands of Areishia Idriss with her spirit sword, Terminus Est, who killed him and that act earned Est the name «Demon Slayer».

Appearance Edit

He was frequently clad in that blood-red overcoat.

Yerusian's appearance is similar to Kazehaya Kamito, both have high heights, long raven hair and nevertheless handsome. The latter notes Yerusian was more muscular.

Personality Edit

Yerusian's aggressive conquest of the continent was not because he was controlled by the will of Ren Ashdoll. He was doing it according to his own will. He trusted and formed a spirit contract with only one spirit, and did not want any interaction with any other spirits. Starting the Demon King War was his own idea. The Demon King never bared his thoughts and feelings to spirits.

Known Spirits in his possessionEdit

Yerusian only contracted one spirit, Iris. He treated the other 72 spirits as powerful tools instead of a contract spirit. He simply used Ren Ashdoll's power to dominate them, Restia notes that he never cared the 72 beings in heart.

Contract Spirit:

  • Iris (Introduced Volume 17)

72 Spirits:

  • Restia Ashdoll (Introduced Volume 1)
  • Void (Introduced Volume 3)
  • Baldanders (Introduced Volume 7)
  • Bandersnatch (Introduced Volume 10)
  • Ifrit (Introduced Blu Ray SS Extra 1)
  • Siren (Introduced Blu Ray SS Extra 1)
  • Vlad Dracul (Introduced Volume 15)
  • Sphinx (Introduced Volume 17)

Abilities Edit

Demon King Powers Edit

  • Superhuman Speed
  • Superhuman Strength
  • Divine Empowerment
  • Miasma manipulation
  • Demon King Burial Chamber


  • Kazehaya Kamito seems to be the successor of the «Demon King» because he is the second known male elementalist in history.
  • He is based on King Solomon, and his legends for controlling demons.
  • According to legend, «Scorpia», the demon scorpion palace in Alphas Theocracy, used to be his residence.
  • Apparently there is a «Burial Chamber» that is connected to him. It is a treasure vault bestowed to eligible Demon Kings, located in a special dimension where the Demon King's weapons and the seventy-two spirits under his command were sealed, and only manifests in the world upon the Demon King's awakening to give the eligible Demon King the power to rule the world.
  • Legends speak of the seventy-two spirits under his command, but in reality, he did not enter into spirit contracts with them. He simply used Ren Ashdoll's power to dominate them, that's all.
  • He uses the 72 spirits in a similar to how Jio Inzagi had used a Bloodstone to control spirits. Of course, the Demon King's case was on a completely different scale.