Demon! Listen Up, This Is Called the Breath of Killing!

Just when the demon army was about to invade the heavens, a man holding a black Tang knife led a special force to charge towards them. You said that demons can regenerate at super speed? ——Sorry, our troops have the Breath of Killing that suppresses super-speed regeneration. You said the demon can carry a nuclear bomb? ——Sorry, our army has Zanpakutō, which can kill souls. The demons looked at this speechless army, could they surrender? - Sorry, crush them! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.