In a cataclysmic event, the Land of Light, home to the Ultraman and the Plasma Spark, faced devastation when the spark went supernova, engulfing their world in chaos. Amidst the destruction, only the pure essence of light survived, hurtling through the vast expanse of space until it found refuge on Earth. There, amidst the turmoil of human civilization, a young man named Hikaru Tsugino stumbled upon the remnants of the Plasma Spark. Drawn by its radiant glow and sensing its immense power, Hikaru reached out, unwittingly becoming the vessel for the last vestige of hope from a distant world. Infused with the ancient energies of the Ultraman, Hikaru was bathed in the transformative Differator rays, undergoing a profound metamorphosis. Emerging from the crucible of light, Hikaru Tsugino was reborn as Ultraman, a beacon of strength and protection against the encroaching darkness. With newfound purpose and responsibility, Ultraman rises to defend Earth against the forces of evil, guided by the legacy of a fallen world and fueled by the eternal light of hope.