Armor Warrior's Light and Dark Obsidian Transformation

On that month and day of that year, the sky of a certain northern city seemed to be dyed with the supreme glaze color. The day did not look like day, and the night did not look like night. The world called that day the day of "change of light and darkness". Light and darkness change! Bright shadows come together! Roaring worm! Bloody armor! Man-eating warrior! A tearful battle! From then on, the world just thought it was ordinary. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.