start over
The Last Protocol
The holographic display in the subterranean command center didn't just flicker; it screamed. A jagged, obsidian spike of energy had erupted from the core of the Tokyo Bay Bridge, and the four bio-signatures of the next generation—Kenji, Akane, Hina, and Mari—were suddenly eclipsed by a void so absolute it swallowed the light of their suits.
"Kenji! Report!" Brick roared into the comms, his knuckles whitening as he gripped the edge of the metal console.
Static was the only answer. Then, a voice that sounded like grinding tectonic plates echoed through the speakers, bypassing every firewall Momoko had spent years perfecting.
"The children are... interesting," the voice hissed. It was a distorted, multi-layered chorus of a thousand whispers. "But they are merely the fruit. I have come for the roots."
Momoko felt a chill that had nothing to do with the air conditioning. She recognized that cadence. It wasn't the chaotic madness of Mojo or the flamboyant cruelty of Him. It was the Shadow Entity from the shipyard—the one they thought they had obliterated when they gave up their powers. It hadn't died; it had been starving, waiting for the Chemical Z in their bloodlines to mature.
"It’s a trap," Momoko whispered, her hands flying over the keyboard. "It didn't attack the bridge to destroy it. It used the kids as bait to draw out the original signatures. It’s feeding on the resonance of their DNA to jumpstart its own evolution."
"Butch, Boomer, get the gear," Brick ordered, his voice dropping into a terrifyingly calm register.
"Brick, we don't have the amplification suits," Boomer said, his face pale but determined. "The prototypes were calibrated for the kids' specific genetic frequency. If we try to use them, the feedback will kill us."
"We don't need the suits," Kaoru said, stepping into the light. She was already wrapping her hands in the old, reinforced kinetic tape she used for her championship bouts. "We have the original blueprints. Momoko, tell me you didn't throw away the stabilizers."
Momoko looked at her sisters and the brothers who had become her family. They were in their late thirties. They had mortgages, careers, and stiff joints. But as she looked into Brick’s red eyes, she saw the leader of the Rowdyruff Boys staring back—the boy who would walk through hell to bring his son home.
"In the back vault," Momoko said, her voice steadying. "The emergency canisters. It’s not pure Chemical Z—it’s a synthesized adrenaline catalyst I developed for the National Guard. It won't give us flight or invulnerability, but for sixty minutes, it will push our human limits to the absolute brink. It’ll hurt like nothing you’ve ever felt."
"I’ve been hit by a skyscraper, Red," Brick said, a feral smirk tugging at the corner of his mouth. "I think I can handle a little muscle ache."
Ten minutes later, the six of them stood in the elevator rising toward the surface. They weren't wearing tactical gear or colorful spandex. They were in their civilian clothes—Brick in his leather jacket, Momoko in her lab coat, Kaoru in her gym sweats. But as they injected the catalyst into their veins, the air around them began to vibrate.
The pain was instantaneous. It felt like their veins were being filled with liquid lead and lightning. Kaoru gasped, dropping to one knee, but Butch caught her, his own teeth gritted so hard his jaw muscles stood out like cords.
"Hold it together, Buttercup," Butch wheezed. "We’ve got a warehouse to run tomorrow."
The elevator doors opened to a nightmare. The bridge was encased in a dome of translucent violet energy. Inside, they could see the four teenagers suspended in mid-air, tendrils of darkness leeching the light from their tactical suits. The Entity stood at the center, a towering mass of shifting shadows that took the vague shape of a six-winged seraph.
"Stay behind me," Brick barked, but he didn't mean it as an order of protection—he meant it as a formation.
They moved. They didn't fly; they ran. But they ran with the synchronized precision of a machine that had been dormant for twenty years. There was no need for words. Brick and Momoko took the center, Butch and Kaoru flanked the perimeter, and Boomer and Miyako moved in a rhythmic orbit, providing cover.
The Entity lashed out with a whip of pure shadow. In their youth, they would have tanked the hit with a force field. Now, they moved with the economy of masters. Brick slid under the strike, his momentum carrying him forward, while Momoko used his shoulder as a springboard, launching herself into the air. She didn't have her heart-mace, but she had a high-frequency sonic emitter she’d pulled from the lab.
*CRACK.*
The sound wave shattered the shadow-whip, and the Entity let out a shriek that rattled the windows of the nearby skyscrapers.
"Now!" Momoko yelled.
Butch and Kaoru hit the base of the Entity’s form at the same time. They weren't using super-strength; they were using physics. Kaoru delivered a devastating low kick to the shadow’s anchor point, while Butch followed up with a concentrated solar-plexus strike that utilized every ounce of his weight. The shadow flickered, its density momentarily compromised.
"Miyako! Boomer!" Brick shouted.
The two most gentle souls of the group moved with a terrifying grace. They didn't use bubbles or bats. They used a series of coordinated flash-bangs and light-refraction mirrors Miyako had designed for her art installations. The dome was suddenly flooded with a blinding, strobe-like brilliance.
"It’s blinded! Get the kids!" Miyako screamed.
Boomer was already there. He climbed the shifting mass of the Entity like it was the oak tree in the park. His fingers bled as the shadow-matter tried to corrode his skin, but he didn't let go. He reached Kenji first, slicing through the dark tendrils with a ceramic blade.
"Uncle... Boomer?" Kenji gasped, his eyes fluttering open.
"Don't talk, kid," Boomer grunted, tossing the boy toward the ground where Miyako was waiting with a safety net. "We’re the ones who get to be the heroes tonight. You just watch the masterclass."
One by one, the teenagers were cut down. As the last of them, Akane, hit the ground, the Entity realized its feast had been stolen. It let out a roar that sent a shockwave across the bay, the dome beginning to collapse inward.
"It’s going to detonate!" Momoko shouted, checking her wrist-scanner. "The energy feedback is too high! If that dome collapses, it’ll take out half of Minato Ward!"
The six of them gathered in a circle around the unconscious teenagers. The adrenaline catalyst was starting to wear off. Momoko could feel the tremors in her legs; Brick’s breathing was ragged and wet. They were human, and they were exhausted.
"We can't contain it individually," Brick said, looking at the collapsing violet walls. "And we can't outrun it."
"The Triple Z-Impact," Kaoru said, her voice raspy. "If we link, we can create a vacuum. We push all the energy inward instead of letting it explode out."
"Kaoru, that will burn out our nervous systems," Boomer warned. "Without the Chemical Z to shield us, we might not walk away from that."
Brick looked at Momoko. In the chaos of the dying dome, with the wind howling and the shadows screaming, he saw the girl who had once been his rival and the woman who was his life.
"We aren't doing it for the city," Brick said, his voice carrying over the roar. "We’re doing it for them." He pointed to the four kids huddled on the asphalt.
Momoko took his hand. "Then let’s show them how it’s done. One last time."
They linked hands. Pink, blue, green—red, blue, green. The original circle. They didn't have the glowing auras of their youth, but as they closed their eyes and focused every remaining drop of the catalyst into a single point of will, a faint, ghost-like shimmer began to emanate from their joined hands.
It wasn't a power surge. It was a resonance.
The dome hit the barrier of their combined will and stopped. The violet energy churned, screaming against the immovable wall of six people who simply refused to move. The strain was agonizing. Momoko felt her vision go white; she heard the sound of her own heart thumping like a frantic drum. Beside her, Brick was a pillar of stone, his grip on her hand the only thing keeping her anchored to the earth.
"Push!" Brick roared, his voice breaking.
With a final, collective scream of defiance, they thrust their hands upward. The vacuum formed. The violet dome didn't explode; it imploded, sucked into a microscopic point of singularity that vanished with a soft *pop*.
Silence fell over the bridge.
The six of them collapsed simultaneously. They lay on the asphalt, staring up at the smoke-filled sky. The catalyst was gone, leaving behind a bone-deep weariness that felt like it would last a century.
Kenji was the first to scramble over to them. He knelt beside his parents, his hands shaking as he checked their pulses. "Mom? Dad? Speak to me!"
Brick cracked an eye open. He looked at his son, then at the glowing red watch on Kenji’s wrist. He reached up, his hand trembling, and covered the watch face.
"Plan... worked," Brick wheezed, a weak smile touching his lips.
"You're insane," Akane said, dropping down beside Butch and Kaoru, who were currently laughing breathlessly while lying flat on their backs. "You fought that thing with... with nothing! You just ran at it!"
"Technique, kid," Butch panted, giving her a thumbs-up. "It’s all in the... the technique."
Miyako and Boomer were sitting up, leaning against each other, watching Hina and Mari perform a quick medical check on everyone. The twins were silent, their eyes wide with a new kind of reverence.
"You didn't need the Z-Rays," Hina whispered, her voice trembling. "You did that because you're... you."
Momoko sat up slowly, leaning her head on Brick’s shoulder. She looked at the bridge, which was scarred and blackened, but still standing. She looked at the city lights, which were flickering back on as the power grid stabilized.
"We did it because we had to," Momoko said, her voice regaining its warmth. "But Kenji is right. The world is changing. The shadows are coming back."
She looked at the four teenagers, who were now standing in a semi-circle around them. They looked different—less like children playing dress-up and more like the defenders they were meant to be.
"We can't do that again," Momoko admitted, her eyes meeting Brick’s. "Our bodies won't take another round of that catalyst. The 'Roots' have done their job. Now, it’s up to the 'Fruit'."
Brick reached into his jacket and pulled out a small, battered communicator—the original one he had kept since he was thirteen. He handed it to Kenji.
"The Last Protocol is over," Brick said, his voice firming up. "From now on, the agency reports to you four. We’ll be in the lab, or the gym, or the garden. We’ll be the ones making the sandwiches and complaining about the noise."
"But what if we aren't ready?" Mari asked, clutching her blue belt.
Miyako smiled, reaching out to stroke her daughter’s hair. "You were ready the moment you decided to protect this city. We just had to remind you that the power doesn't come from the belt. It comes from the person wearing it."
As the sun began to peek over the horizon, casting the first rays of dawn across the bay, the group began the slow walk back toward the shore. They moved in pairs—the veterans limping, supported by the strength of the new generation.
The red, blue, and green streaks of the teenagers' suits caught the morning light, but it was the six ordinary people in the middle of the group who drew the eyes of the few early-morning commuters. They looked like survivors. They looked like family.
When they reached the end of the bridge, Brick stopped and looked back at the city. He felt the ache in his ribs and the sting in his eyes, but for the first time in his life, he felt a complete, unadulterated sense of peace.
"Hey, Red," he murmured to Momoko.
"Yeah?"
"I think I’m officially retired. For real this time."
Momoko laughed, the sound bright and clear in the morning air. She leaned in and kissed him, a kiss that tasted of salt, smoke, and a lifetime of shared victories.
"Good," she said. "Because those tomatoes in the garden aren't going to water themselves."
They walked off the bridge and into the light of a new day, leaving the shadows of the past behind them once and for all. The city was safe, the legacy was secure, and the six heroes of Tokyo had finally earned the right to just be humans.