The ghastly Demon Lord Clayman, nicknamed Marionette Master, for manipulating his friends and subordinates like dolls.


Clayman served as Kazaream's aide.

400 years ago, Kazaream turned him into a demon lord. The moment he became a Demon Lord, he began hunting down named devil and monsters to steal their hearts. Making them swear loyalty to him, he inscribed a curse onto their hearts, making them his eternal servants.

After Kazaream was defeated by Leon, Clayman hadn't received any words from him for about 100 years, but several decades ago he abruptly contacted him. To revive his spiritual body, Clayman needed to gather power.

After, plotting a war between humans and demons wanting it to result in Tempest's demise, he was killed by Rimuru Tempest.


Clayman is weaker than the other Demon Lords, however, he is the most ingenious.

The ominous black aura released by Clayman quickly regenerates his wounds. This ability far surpassed the one displayed by the Orc Disaster Gelmudo.

When he took out a jewel of various colors, that's level of energy is equal to around 10,000 human souls. He transformed into a being that’s very different from before. His hair emanated spiritual energy; a trail of dazzling multicolored light was left in its wake. The length of the hair had also greatly increased. All The clothes on his upper body were torn in multiple places revealing colossal amounts of muscle lying beneath it. His eyes were tinged with a rainbow hue. He emitted holy power on a level that could rival the Giant Demon Lord Dagruel. Clayman forced an artificial Demon Lord evolution using that stone as a catalyst. By absorbing energy from the Spirit Jewel, he forcibly awakened himself as a Demon Lord. However, because the used energy attribute was different from his own, he evolved into an uncompleted state, a Variant Demon Lord. But, because he didn’t need to wait the blessing of the harvest festival to occur, he was able utilize his full power immediately.

Unique Skills

  • Puppeteer
    • Marionette Master: This ability allows him to make dolls out of devils whose souls he stole. Marionette Dolls can immediately regenerate and continue to attack if destroyed. However, these dolls aren’t protected against attacks to their souls.


  • Demon Lord Destruction Cannon (Demon Blaster)


  • Kazaream: Clayman’s master, Clayman was his aide. He was also the one who turned him into a Demon Lord 400 years ago. Even after becoming a Demon Lord, he still moved following his instructions.
  • Gelmudo: Gelmudo was his protege, however, to him Gelmudo was little more than a disposable pawn.
  • Myulan: Clayman treated Myulan as a disposable pawn.


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