The Demon King Cannot Forgive the Fantasy World's Promises ~Even If Told to Return from the Human Kingdom, It's Already Too Late! The Unfortunate Hero Bound by the Illusion of a Legendary Hero Will Be Protected by the Demon Race and Made Happy!~

After a grueling journey, the hero finally reached the Demon King. But waiting for the hero, who had braced himself for a deadly battle, was a Demon King who clung to him while crying, consoling him for his hardships. As the bewildered hero stood there, the Demon King reflected back on the misfortunes the hero had endured throughout the journey he had been watching all along...