Tentacles? To Me, the Demon King!

※ This work contains scenes of non-consensual forced relationships and simulated gang rape. Please keep this in mind before purchasing. The Demon King, the being undisputed as the strongest in the Demon Realm. Possessing magical power strong enough to shake the world, he one day experiences a strange phenomenon where his magic temporarily ceases to function. While letting his guard down, thinking it would be resolved quickly, things go from bad to worse when he is captured and humiliated by a mere low-ranking monster—a tentacle! The Demon King tries to dismiss the incident as an unpleasant dream and act as if it never happened, but starting from the tentacle incident, his magic doesn't j...