Yuki reluctantly heads out on a journey to the demon world! When an envoy arrives from the Demon King to request his aid in fighting a dangerous foe, Yuki wants answers. But the discussion only leaves him with more questions, so the envoy suggests heading to the demon world to talk to the Demon King himself. And Yuki does exactly that, with En and Leila in tow! On the way there, he makes new friends and foils a gang of bandits with his unorthodox magic. Then, when he finally arrives in the demon world’s capital, he finds a city rife with intrigue, where more new encounters await—not to mention an unexpected reunion! But as always, trouble is waiting just around the corner... Will the demon lord who just wants to chillax in his dungeon ever catch a break?!