Cavalier of the Abyss Wiki

Xix undoing a seal with his blood.

Royal Blood is the blood of Regis Nex and his descendants. This blood can unlock many things, including the Caladbolg's seal.

Known characters who posses this blood


  • Just had to steal blood before releasing the seal, since he is not a descendant of Nex's. It is uncertain if the blood Just stole from Ninurrta is what opened the seal.
  • Since Ninurrta Noah ran away before releasing the Imperial seal, it is still unknown if he posseses the royal blood.
  • It is not yet known if Siana posseses royal blood.