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Unbreakable Bones

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The power to have indestructible bones. Sub-power of Bone Manipulation. Opposite to Hollow Skeleton.

Also Called

  • Indestructible Bones
  • Unbreakable Skeleton


The user possesses unusually dense bones that protect their inner organs and brain.




  • Only the bones are unbreakable.
  • May need a lot of Calcium supply for bones' sustenance.
  • Dislocation and ripping/cutting limbs is still possible.
  • Users of Absolute Strength can break the user's bones.

Known Users

  • Reapers (Blade)
  • Sennin (Houshin Engi)
  • Space Marines (Warhammer 40,000); via Ossmodula implant
  • Brook (One Piece); Post-Timeskip 
  • Shizuo Heiwajima (Durarara!)
  • Jonny Moreau (The Cobra Trilogy)
  • Keill Randor (Last Legionary)
  • Wolverine (Marvel)
  • X-23 (Marvel)
  • David Dunn (Unbreakable)
  • Protagonist Characters (Fallout); via Adamantium Skeleton perk
  • Ironclad Beetle (Insects)
  • Axel Etcheverry (Los Unicos)
  • Ciro Funes (Los Unicos)


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