In a distant and unfamiliar universe, an unknown Ultraman finds himself lost and alone after a powerful blast from a kaiju. This explosion has thrown him into a new world—a small, vibrant planet painted with shades of red. The atmosphere is alive with color and movement, filling the Ultraman with a sense of adventure. He feels a strong urge to explore this strange land, hoping to find signs of life, shelter, and a glimmer of safety in an unpredictable environment.

As he moves through this new terrain, he stumbles upon a unique scene. Two figures are intensely focused on their training. Leo, the more experienced of the two, stands as a mentor, guiding the second figure, Zero. Zero stands out in a heavy metal suit, which gives him an impressive appearance. Despite the weight of his armor, his determination shines through. He pushes himself hard, motivated by Leo's encouragement and expertise. Their relationship is built on trust and mutual respect. Leo's words inspire Zero to reach beyond his known limits, to strive for strength and skill.

While watching this exchange, the unknown Ultraman feels conflicted. Should he step forward and introduce himself, or should he continue to watch from a distance? His heart pounds as he weighs his options. Just then, Zero’s sharp eyes lock onto him, breaking the moment of uncertainty.