Shiei no Sona-Nyl Refrain: What a Beautiful Memories

The year is 1907. The 20th century is still young. This is a world that experienced a 19th century very different from our own. A world of innumerable steam-powered Engines. The unnaturally rapid development of this steam civilization filled the air with smog, robbing humanity of the blue skies they'd once known. There is one place in particular where the sky is darker than anywhere else: the ruin...