Dragon Quest: Eden no Senshi-tachi

Dragon Quest VII follows a young boy named Arus, the son of a celebrated fisherman in the small island village of Fishbel. Estard Island stands as the sole landmass in a world covered entirely by ocean. When he discovers relics from an ancient era, Arus embarks on a journey that rends the fabric of time, revealing a world that once existed. Transported to the distant past, Arus and his companions unravel the enigmas of these lost lands and shatter the curse of annihilation. As they delve deeper, they uncover the truth: their present world was once home to numerous continents, all of which have been mysteriously sealed away. This manga is based on the game of the same name.