The city burned beneath the pale dawn. Smoke rose from collapsed buildings, and the sound of roaring monsters echoed across the skyline. Alarms blared through the streets as civilians ran for safety. Above it all, Gosei's calm yet urgent voice rang through the communicators of the remaining Rangers on Earth.
"Noah, Jake—there's a new threat in the city. Four monsters are attacking simultaneously. You must stop them before they reach the central power grid!"
Noah tightened his grip on his weapon, nodding. "Got it. We'll handle it."
Jake smirked, his nerves hiding beneath a grin. "Four monsters? Guess we don't get breaks anymore."
Both Rangers morphed and raced toward the city, their colors streaking through the smoke and chaos. When they arrived, the ground shook beneath the feet of four towering monsters—mutated hybrids of metal and flesh, their roars splitting the air.
"Alright," Noah muttered, analyzing their movement. "Three for me, one for you."
Jake blinked. "Wait, what—hey, that's not fair!"
But before he could argue, the creatures lunged. Noah charged head-on, his weapon igniting with energy as he parried and dodged, fighting three monsters at once. Sparks erupted with every strike, the battle like a storm of light and destruction.
Jake faced his own monster—a hulking beast covered in molten armor, its arms swinging like wrecking balls. Jake countered and ducked, but each blow sent him staggering back. He could feel the strain, his energy draining fast.
"Come on… not yet," he hissed, bracing himself as the creature slammed him into a concrete wall. The impact cracked his helmet visor, and he collapsed to one knee. "Gotta… keep fighting…"
Above him, the monster raised a blazing claw to deliver the final strike.
And then—time seemed to freeze.
The sunlight dimmed. A shadow passed over the city. From far above, a figure appeared—calm, radiant with golden power. Kamen Rider Ohma Zi-O stood on a rooftop, silent as a statue. He raised his hand toward Jake, light pulsing from his palm.
Jake's Morpher began to glow violently. Energy coursed through his veins, his armor shifting and reforging itself in a brilliant surge of red and gold.
"What—what is this?!"
Power overwhelmed him—controlled fury and unstoppable speed. Jake stood tall, his new form gleaming, stronger than ever before.
The monster roared, slashing downward—but this time, Jake didn't dodge. He caught the blow mid-swing, shattering the creature's weapon in half.
"Sorry, pal," he said, his visor flashing. "This round's mine!"
In one swift movement, he unleashed a spinning kick surrounded by golden energy, striking the monster dead center. The explosion lit up the city skyline, disintegrating the creature into ash and light.
Noah, still fighting nearby, glanced back, astonished by the sheer force Jake had unleashed.
Jake turned to him, grinning under his helmet. "Looks like I'm catching up to you now!"
Noah chuckled, shifting his stance. "Good. Let's finish this together."
With synchronized precision, the two unleashed their final attacks—Noah using his new Rider-infused power, Jake channeling the strength gifted by Ohma Zi-O. The combined energy ripped through the three remaining monsters, reducing them to dust.
When silence finally fell, the two Rangers stood amidst the ruins, breathing heavily.
"That… was intense," Jake said, resting his weapon on his shoulder.
"No kidding," Noah replied, lowering his sword. "But something tells me this isn't over yet."
Their communicators beeped. Gosei's voice returned, serious and strained.
"Excellent work, Rangers. But we've just received a message from the moon. Orion and the others need your attention—something huge is happening up there."
Noah pressed the side of his helmet. "Orion? What's going on?"
Static filled the channel for a moment before Orion's voice broke through.
"This is Orion—Yuriko, Emma, Gia, Troy, and I are on the moon. You wouldn't believe it… there's an entire army up here. Thousands of monsters, gathering for war."
The line crackled again, followed by a low rumble in the background.
"We're preparing for battle. Whatever happens next—it's going to decide everything."
Then the message cut off.
Jake's expression hardened. "Thousands? That's insane."
Noah nodded. "They'll need all the help they can get."
Gosei's voice returned, steady yet grim.
"You've both done enough for now. Rest and recharge. The moon team will need you soon. The fate of both Earth and the cosmos rests on this coming fight."
The two nodded, though unease flickered behind their visors. The calm after battle felt heavy—as if the world itself was holding its breath.
Meanwhile, on the Moon…
The lunar surface gleamed under the faint reflection of Earthlight. Yuriko, Emma, Gia, Orion, and Troy stood together, their boots pressing into the gray dust, their armor shimmering beneath the cosmic glow.
Before them stretched an endless army—rows upon rows of monsters, stretching far beyond the horizon. The air thrummed with malevolent energy, and the silence before battle was deafening.
Gia tightened her grip on her weapon. "There's… so many."
Emma exhaled slowly, her visor dimly reflecting the army ahead. "We've fought impossible odds before. We can do this."
Troy stepped forward, his new form gleaming like burning crimson light. "We don't back down. Not now."
Yuriko looked ahead, her stance unwavering, though her heart pounded with determination. "We fight not just for Earth—but for every world that believes in heroes."
Orion adjusted his weapon, his new form still unfamiliar but strong. "Let's make this count."
And then—the air shifted.
A ripple of dark energy rolled across the lunar plains, and from the army's center, a tall, imposing figure emerged. The crimson glow of his armor reflected like blood beneath the stars.
"Kamen Rider Fifteen…" Yuriko whispered.
The masked warrior stepped forward, sword in hand, his voice echoing through the still void.
"You've come far, Rangers. But your story ends here."
The five stood side by side, their weapons drawn, power igniting around them.
Earth's fate.
The Moon's destiny.
The final war was about to begin.