Several weeks had passed since AB Team's victory over the aliens in the old factory of Milky City.
The world had returned to peace, and life for Asta and his friends went back to normal.
But deep inside Asta's heart, he knew — this wasn't the end.
One night, Asta woke up to a strange sound coming from his room.
It was Armorbot, suddenly activating on its own.
"Master Asta… I am detecting an unidentified energy signal. Its source… is coming from the sky — from Earth's orbit."
Asta's eyes widened. He quickly turned on his computer, and a holographic radar appeared, projected by Armorbot.
A massive object was approaching Earth's atmosphere.
"Is that… a spaceship?" Asta asked.
"Affirmative, Master. The signal matches the energy signature from Planet Grester."
Asta's expression turned serious. The enemy was not finished yet.
The next morning, Asta gathered his team — Choji, Hina, and Felix — at the same park where they had first formed AB Team.
He explained everything he discovered the night before.
"The energy signal is getting closer," Asta said. "Armorbot detected a massive ship… possibly carrying new alien troops."
Hina immediately analyzed the data through her scientific tablet.
> "If this signal is accurate, the ship will land in the southern mountains… in three days."
Felix clenched his fist.
"Then we don't have much time. We need to prepare."
The team agreed to return to Mount Natus to retrain under their martial arts master.
When they arrived, Master Rugo welcomed them with a stern look.
"I've been expecting you. Peace never lasts long… You're about to face enemies far stronger than before."
For the next week, the team underwent advanced training — not just in combat, but in full synchronization with their Armorbots.
Asta learned to control Full Synchronization Mode, merging his consciousness completely with Armorbot, multiplying his speed and strength tenfold.
Choji mastered a rapid strike technique powerful enough to crush steel.
Hina became so fast she could leave behind afterimages.
Felix reinforced his Steel Head armor until it could reflect alien energy blasts.
When the training ended, Master Rugo gave them one final warning:
"Your next foes aren't ordinary aliens. They are the Gresterian Elite — the honor guards of Planet Grester.
If they manage to open an interplanetary portal on Earth… this world will be destroyed."
Three days later, the night sky turned crimson.
A massive light pierced the atmosphere and crashed into the southern mountains.
A deafening explosion echoed across the entire city.
The AB Team immediately set out for the crash site.
When they arrived, they were stunned — a colossal mothership shaped like a metallic dragon hovered above the mountains, surrounded by dozens of smaller ships.
From the main vessel, three figures emerged:
1. Zarthon – the leader of the Gresterian Elite, towering and clad in pitch-black armor.
2. Mira – a female alien with violet eyes and the power to manipulate gravity.
3. Gruk – a two-faced giant wielding a plasma hammer.
Asta stepped forward, shouting boldly:
"We won't let you destroy Earth!"
Zarthon glared at him coldly.
"Earth is nothing but a speck of dust in the galaxy. Armorbot rightfully belongs to us.
Hand it over, human."
Asta stood firm.
"Armorbot isn't a weapon of war — it's a protector of life!"
And with that, the battle began.
Explosions thundered through the forests and mountains.
Choji clashed with Gruk, his punches shaking the ground.
Hina fought Mira in midair, dodging gravity blasts at incredible speed.
Felix blocked waves of enemy robots with his indestructible armor.
Meanwhile, Asta faced Zarthon head-on.
Their strikes tore through the earth, each blow echoing like thunder.
As Asta's armor began to crack, Zarthon removed his mask — revealing a half-human, half-machine face.
"I am the result of humanity's failed experiment.
The first Armorbot wasn't made by my kind… it was created by yours."
Asta froze.
"What did you say? Humans… created the Armorbot technology?"
Zarthon nodded slowly.
"And we, the Gresterians, perfected it.
But you humans are too weak to wield such power."
Rage burned inside Asta.
He activated Full Synchronization Mode — his body glowing with silver-blue energy, light radiating in waves around him.
"You're wrong!
Power like this… isn't meant to destroy — it's meant to protect!"
With a final burst of energy — Iris Burst Strike — Asta charged forward and pierced through Zarthon's core.
A blinding explosion followed as the alien leader fell, and the mothership erupted in flames, disintegrating in the night sky.
After the battle, the AB Team returned to the city.
The skies were clear again — peaceful once more.
But suddenly, Armorbot spoke with a grave tone:
"Master… the Grester data core wasn't completely destroyed.
They might return… even stronger than before."
Asta looked up at the stars, his expression calm yet determined.
"Then we'll be ready for them.
Because this… is only the beginning."
TO BE CONTINUED…