In the city of Sauron covered with heavy metal domes, Io is a lightning rod worker standing on the top of the "Io Thunder Tower". The crystal scars left over from old lightning strikes enable him to withstand the impact of 10,000 thunderbolts, and refract the pure destructive energy into rainbow brilliance, dispelling darkness for the residents at the bottom. Slum dwellers gratefully call him the "Father of Light", and his shadow is engraved into their beliefs through hidden totems.
However, the space industry oligarch "Black Wing Company" that controls Solon City planned an efficient cleaning operation - "Scorched Earth Apocalypse" in order to plunder the land of the "gold rush" slums that are full of precious ore minerals but extremely squeezed on manpower. They forcibly commandeered Io's crystal body as a perfect lens to transform the violent electric arc gathered by the giant tower's sky rope into a destructive death light.
On the eve of the operation, Io guided the slum orphans to secretly escape into the shelter inside the lightning tower. The moment the death light erupted, he quietly twisted his crystal body at the cost of his life - the powerful destructive lightning suddenly deflected as the body twisted, and suddenly pointed at the president's office of Black Wing Company: the rainbow light penetrated the armored glass, which was said to be absolutely indestructible, and became the charred corpse on the president's office chair.
As the president's charred corpse hung like a strange abstract painting at the top of the tower, legends began to spread: Io, the father of light, had not truly disappeared. His will was integrated into the depths of the metal of the tower, becoming an eternal watcher watching the storm in crystal form.