Possession

Possession (憑依) is an Intrinsic Skill of Daemons and Phantoms.

Abilities
It allows its user to attach their Spiritual Body onto objects or people, turning it into their own Material Body and allowing them to incarnate.

The exact nature of this Skill is unclear, since the ability to incarnate into a Material Body appears to be inherent to virtually all beings of a spiritual and demi-spiritual nature.