When Four Arms reached the electronics section, Dr. Animo was already gone.
Only one or two employees remained, slumped on the floor in terror.
Four Arms forced what he believed was a friendly smile.
One of the employees immediately fainted.
"…Right."
His expression darkened.
"Tell me—where did that skinny mad scientist run off to?"
The remaining staff member shakily raised a finger.
"H-He went to the pet section…"
"Pet section?"
Four Arms froze.
"…Grandpa."
Without another word, he stomped toward the pet aisle. Each step cracked tiles and sent vibrations through the store.
The moment he reached the entrance—
He stopped.
Because what he saw completely stunned him.
Grandpa Max was wrestling Dr. Animo on the ground.
Not only that—
Max had actually pinned him down.
"If you keep this up," Max warned firmly, "I'm going to get serious."
"Let go of me, you old fossil!" Dr. Animo shouted furiously, struggling under Max's grip. "Since when can a random senior citizen overpower me?!"
Four Arms blinked.
"…Grandpa really was a Plumber."
Even he looked impressed.
Dr. Animo, humiliated, quickly twisted a gear on the device attached to his chest. The gene manipulator on his head crackled with electricity.
Whoosh!
A pulse of energy shot toward a nearby cage.
Inside had been a small, harmless-looking hamster.
In seconds, the animal expanded like an inflating balloon. The cage exploded apart as the hamster grew to the size of a compact car.
Its once-cute face twisted into something monstrous. Teeth sharpened like blades. Tiny eyes glowed crimson.
Max looked up.
"…Well, that's new."
Dr. Animo took advantage of the distraction and scrambled free, rolling toward his mutated creation.
That's when he saw Four Arms standing behind him.
"Aiden—?" Max began.
"Grandpa, I've got this," Four Arms said calmly. "Please step back."
Max studied the towering alien for a second—then nodded and retreated a safe distance.
Dr. Animo narrowed his eyes.
"Grandpa? So you're connected to that old man?"
He twisted another dial.
Whoosh!
Another electric pulse struck a second cage.
A black hamster ballooned outward, transforming into a massive, spiked beast. Its fur hardened into needle-like quills, resembling a giant hedgehog.
"Two should be safer," Dr. Animo declared smugly. "Go! Knock that four-eyed freak unconscious and bring him to me!"
He wanted to experiment on Four Arms.
Four Arms merely smiled.
"Knock me out?"
[Ding! Sign-in target detected: Mutated Hamster.
Objective: Subdue the target.]
[Ding! Sign-in target detected: Mutated Three-lined Hamster.
Objective: Knock unconscious.]
Four Arms' eyes lit up.
Two missions.
This guy was practically handing him rewards.
Even white-tier upgrades—strength boosts, time extensions—were incredibly valuable.
Dr. Animo frowned.
"…Why is he smiling?"
Four Arms scratched the back of his head and looked at the scientist.
"Hey, your name's Dr. Animo, right?"
Dr. Animo straightened proudly.
"That's correct. Dr. Animo—the greatest genetic scientist alive."
"Oh, good." Four Arms nodded. "Can you do me a favor?"
Dr. Animo smirked and raised a hand, signaling his two mutant hamsters to pause.
"Ah, I see. Begging already? It's a bit late for that. But if you kneel, perhaps I'll consider sparing you."
He grinned cruelly.
Four Arms shook his head.
"No, you misunderstood."
He looked genuinely hopeful.
"Could you maybe make a few more mutated animals for me to fight? These two aren't really enough."
Silence.
The air froze.
Dr. Animo stared at him.
"…What?"
...
Author's Update 18+ 📢
The fanfic Naruto: Raised by Kushina, Took His Brother's Wife – Part 1 is now officially fully completed!
It is now available on Patreon for all tiers, including the lowest Tier 1.
The complete Part 1 has been uploaded on Patreon.
📚 Category: Naruto 18+
🔗 patreon.com/Shadow_demon_007
Thank you all for your continuous love, support, and patience for this story 💙