Year 2056, in a city in the Yuan Jiang Su Jin area. On top of a ruined, shattered six story residential apartment sits a teenager wearing a combat vest, militaristic trousers, and alloyed battle boots. On his back is a hexagonal shield and equipped is a blood-shadow battle knife. He sits there silently on the edge of the roof. At this time, the sparkling sky was shining and there was a refreshing breath within the air that blew towards him. However, there was only silence within the ruined, deserted city, with an occasional howl that makes your heart skip a beat.

Reborn as a cell, carrying the power of prison, to a parallel world where the ancients have awakened.

Steam civilization, thriller space, the old king of the night, strangers outside the city.

The gate of fate has been opened-Crusader, library, control, machinery, mysticism will be the new growth system for human development.

Human praise is a praise of courage! The knights who marched forward galloped in the world ruled by the ancient kings and regained the freedom belonging to humankind.