[Machine Translation] Zagan takes action against the many crises and problems that are looming. Suddenly, Zagan's old friend and the leader of the enemy, Marcosias, appears. He said, "I'm going to summon the current 'Demon King'. The meeting was to be held at the end of the world, where all the current "Demon Kings" would be present. Zagan decides to go to the meeting, and since it is a great opportunity, he and his friends go sightseeing along the way. Furthermore, Barbaros seems to be planning something for Zagan and Nephi. Volume 18 of this popular fantasy romantic comedy!