In a world shrouded in mist, an elegant nobleman in a tuxedo looks at the machinery covered with huge gears. In the pervasive steam, the silver pocket watch on his chest rattles with the clockwork, attracting the attention of crows. The mystery has faded on the surface , the fantasy world where the gears roar with the steam, and the ancient and mysterious sequences appear real as the pages are turned. With the running group system, Diago traveled to this mysterious world that combines steampunk and wizards.