Celestial Spirits possess exceptional powers of heaven and earth at birth, meaning they don't need to cultivate. However, the existence of ‘celestial spirits’ had already been extinct since the Ancient Era.
Not much is known about them so different Celestial Spirits might be different from each other, but so far they have the appearance of a human, but with no life signs of a human, and have the ability to transform; like into a sword.
Known Celestial Spirits
- Hong'er - Can transform into a gigantic heavy sword known as the Heaven Smiting Devil Slayer Sword.