It's a secret technique of the middle peak of the Blood Stream Sect.

[Use blood qi to form a sword, transform it into a world of annihilation. Whether you’re injured or you injure someone else, the blood qi that spills out will make the blood sword stronger.]

The Blood Annihilation World is split in four levels:

  1. Refined Blood Qi
  2. Blood Qi Plasma
  3. Inverse Blood Ancestral Awakening
  4. Blood Qi Tribulation
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