Immovable ｢万物不動, banbutsu fudō, lit. "Everything Immovable"｣ is a Skill owned by Grigori.
Abilities
It allows the user to harden their entire body at will, making their flesh tougher than most metals. While activated the user cannot lose consciousness and even moving them is a monumental task. The draw back is that even with the hardening the user is not invincible and can still feel pain.