In the land of industry and steam, the high steel wall erected surrounds Delin. No one knows why this high wall was built, no one knows why history cannot be traced back to its origin, and no one knows why there are so many weird places and people with scientific abilities beyond the existing science on this land.
Andel is just an ordinary kid who will gradually uncover his own mysteries and history, and gain the most real feelings and growth.
Concept: There is truth behind everything weird, and true feelings are worthy of respect