Know Your Place, Demon Lord!

When the weak, naive hero appeared at his castle, the Demon Lord scoffed, certain it would be an easy victory. But in the next moment, he found himself flat on the floor, unable to fight back. The hero strangled him to the brink of unconsciousness… The Demon Lord was then stripped of his powers, sealed away by a collar clasped around his neck. "From now on, you're my slave," the hero declared. What…?! The taunting hero x The proud, humiliated Demon Lord! He's about to learn the agony of a shameful defeat!

Official Translations:
English (Coolmic, MangaPlaza, Renta), T.Chinese, Korean