Invisible Bullet (不可視 弾丸) is a Weight Type Magic that is Kichijouji Shinkurou's trump card. Since it relies on a Cardinal Code, this Magic has no need to define the altered phenomenon that is mandatory in normal Magic because the driving force itself has been defined. Under this condition, 'Invisible Bullet' has no need to rewrite the surface that force was applied on regardless of whether it was a wall, the surface, or even the human body. 'Invisible Bullet' is a magic that directly improves the force itself.