Guided by a young blind girl named Lisabelle, a man named Jin, burdened by the weight of his past, embarks to the sky city of Ciel'adan in a suit of symbiotic armor called "Vilfona".

When Jin becomes one with his armor, his heart is cleansed...

Inspired to protect the city and fulfill a wish long forgotten, and empowered by the magic of Lisabelle, Jin vows to wield Vilfona in the name of righteous good.