Arcadia Garden

Here, the aerial city "Arcane Garden" is the only place in the world that the hero has managed to save from the ruins. The existing Earth, the world of living beings, has only darkness and pollution, and this is beginning to expand into the heavenly ocean. A group of adventurers joined in an airship to start a journey to defeat the magic left by the evil spirit who started it all—

(Source: MangasProject)