I want to take a chuunibyou dark mage on a demon king subjugation quest.

The hero, unable to completely abandon his dream of defeating the Demon King that he had once given up on, was attempting to gather his companions once again. The first place he headed to was a restaurant in town……a shop opened by a dark mage who was once a party member. However, he had developed a severe case of chuunibyou…… *This is a comedy sketch in dialogue format.