This Psychopath's Surname is Uchiha

"What are those two white lumps?"

"Ugh, one is that idiot who survived from the Uchiha Clan, and the other is that demon fox brat."

"So, what are they doing?"

"Don't worry about them, they're just two tough-luck cases."

In the dim alleyway, two shadows flashed past.

Uchiha Sen, draped in a bedsheet, pulled a wooden clog from his waist and pressed it repeatedly on the back, whispering:

"Double-Zero Two, please respond if you hear me. Double-Zero Two, please respond, beep-boop, beep-boop."

Beside him, Naruto Uzumaki, also draped in a bedsheet, looked grim. He reached to his waist, pulled out a wooden clog, and replied:

"Double-Zero Two received, please instruct! Beep-boop, beep-boop."

"The planetary invasion plan has been exposed. Double-Zero Two, remember to conceal your identity. If necessary, attempt to infiltrate the enemy's interior!"

With that, Uchiha Sen fled toward the other side. In a deserted spot, he gazed at the unobstructed sky and pulled out his wooden clog again:

"Hole-Hole Monster calling Blue Star Headquarters, have successfully infiltrated the enemy's interior, requesting communication. Beep-boop, beep-boop."

After waiting for a while, he received no reply.

He pulled back a corner of the sheet and smirked. As expected, once he put on the Invisibility Cloak, no one could see him. He scanned his surroundings to ensure safety and tucked the "communication device" back into his waist.

Uchiha Sen glanced at a park bench, sprinted toward the backrest, and pushed off the ground, launching himself into the air.

Then, he fell headfirst and, as luck would have it, slammed into a rock.

This scene was witnessed by Naruto, who had been tailing him the whole time.

"Oh no!"

When Uchiha Sen woke up again, he was in a hospital room. The sky outside the window had already turned dark.

[Ding! System successfully activated. Host must complete tasks to unlock the progress bar. Completing the progress bar will unlock the Heavens. Scanning host's physical condition: severe mental illness, severe persecutory delusion, intermittent behavioral disorder. Accept treatment?]

Uchiha Sen rubbed his eyes and shook his head, completely ignoring the bright blue system panel in front of him.

"Just as I thought, the ants on this planet have already noticed the great Cybertron warrior. They actually launched a sneak attack from behind—despicable, shameless, and lacking in martial virtue!"

[Does the host accept treatment?]

"You're the one with the mental illness! Your three generations are all mentally ill. I'll treat your ancestors for seventeen generations! Get lost, you're blocking me from absorbing the essence of the sun and moon!"

[Treatment failed!]

Uchiha Sen cautiously scanned the room. After confirming no one was there, he sat cross-legged to cultivate. Footsteps echoed from the hallway from time to time.

This prevented Uchiha Sen from fully immersing himself in his cultivation, so he pricked up his ears to listen to the movement outside the corridor.

On the other side of the village, in a dark secret room, Danzo Shimura, wrapped in bandages, spoke:

"Playing the fool might fool others, but it won't fool me! Go and bring him here."

"Yes!"

The ninja wearing an eagle mask leaped out of Root.

By now, it was after the night of the clan's extermination. Only two people from the vast Uchiha Clan had survived: the second young master, Sasuke Uchiha, and the severely mentally ill transmigrator, Uchiha Sen. The Third Hokage had settled them both to minimize the impact of the incident, but Danzo was not satisfied with this and had grown suspicious of Uchiha Sen's identity.

A few minutes later, in the hospital room.

"Uchiha Sen, Lord Danzo invites you to come with us." Eagle Nine had his feet suctioned to the eaves, hanging upside down on the window frame with his arms crossed, his tone brooking no refusal.

[System scan]

[Aburame Zhiheng, male, Chunin, skilled in Water Release ninjutsu and Insect Secret Technique. Ordered by Danzo Shimura to bring the host back to Root. Matching host's strength, danger index analysis: extremely high. Strongly suggest the host make a scene to attract the ANBU ninjas hiding in the vicinity for rescue.]

After receiving no reply for a long time, Eagle Nine grew impatient. His eyes were fixed on Uchiha Sen, and the room was filled with a murderous aura.

[Best suggestion: Smash the desk lamp nearby.]

The thoughts of a psychopath are always different from those of a normal person.

"Why are you glaring at me? You dare look down on the bravest warrior on the planet!"

Uchiha Sen pointed at Eagle Nine outside the window and cursed:

"So you're the one called Zhiheng-nan? Don't think that just because you're a woman, I won't dare do anything to you. Once I get out of here, I'll beat you every time I see you. Still glaring? You old hag, you just wait, I'll show you who's boss."

[It's Aburame Zhiheng, not 'a woman named Zhiheng', and why are you provoking him, hey?!]

Eagle Nine didn't want to waste time. He pushed open the window, flipped inside, landed steadily, and flipped his hands to reveal two kunai.

He lunged forward in a flash, the kunai glinting coldly as they aimed straight for Uchiha Sen's vitals.

[Danger warning, host please dodge to the left immediately.]

Uchiha Sen raised his left hand, extended his middle finger toward Eagle Nine's nostril, and simultaneously grabbed the slipper hidden under his pillow with his right hand.

"Despicable local Muggle, you yin-yang person, back in the day, I could take on ten of you like this!"

Eagle Nine's breathing grew noticeably heavier. More red bloodshot veins appeared in his eyes, and the veins on his forehead bulged. Lord Danzo only said to bring the person back; it didn't matter if he got hurt. Who would care about an idiot Uchiha?

Yes, he was angry.

He was going to teach this ignorant kid a lesson.

He threw away his kunai, clenched both fists, and swung them with a whistling wind, aiming straight for Uchiha Sen's head.

[In accordance with the principle of strengthening the host, the system temporarily grants the host Super-Kage Level strength for one minute. Please host... never mind.]

Uchiha Sen swung his slipper backhanded. Eagle Nine sneered; at that speed, he wouldn't even touch him before...

In that very instant, the system channeled one minute of Super-Kage Level strength throughout his entire body. The hand that had looked like it was moving at a snail's pace just a moment ago was now so fast that not even a shadow remained.

"How is this possible!"

"Whoosh!"

"Smack!"

When the slipper made contact with Eagle Nine's cheek, it produced a deafening sound like a cannon blast, showing just how much force was behind it, sending Eagle Nine flying straight out the window.

"Thud."

Eagle Nine lay on the lawn downstairs, his mind a complete blank.

Who am I? Where am I? What did I come here to do?

[Danger averted, energy retracted.]

The ward doctor pushed the door open, turned on the lights with a wary expression, and found Uchiha Sen curled up entirely under his blanket.

"Uchiha Sen, what are you doing?"

A small head poked out from under the blanket, revealing an innocent, harmless smile.

"I didn't do anything."

The doctor didn't dare stay long. Everyone in the Hidden Leaf Village knew that this guy didn't seem quite right in the head. He closed the door, thinking it was better to avoid unnecessary trouble, and left quickly.

Once it was quiet again and he confirmed no one was around, a series of sounds came from under the blanket once more.

"Hole-Hole Monster calling Blue Star Headquarters. The planet's greatest warrior has successfully repelled the enemy. I am still in danger and will find another opportunity to contact headquarters. Beep-boop, beep-boop."

Hokage Office Building

"You're saying that guy was hiding his strength?"

Third Hokage Hiruzen Sarutobi frowned, his face full of confusion. In his impression, wasn't Uchiha Sen always playing some inexplicable games with that brat Naruto?

"Yes, Lord Third Hokage. Eagle Nine from Root, a Chunin, was seemingly blown away by a massive force. According to the investigation, only Eagle Nine and Uchiha Sen were in the room at the time."

Hiruzen Sarutobi's eyes flashed with a sharp light. He channeled his chakra and turned his gaze toward the crystal ball on his desk.

"Beep-boop, beep-boop..."

[Ding! Detected someone secretly spying on the host, no malice found... The system will not counterattack.]

"This..."

Watching Uchiha Sen hiding under his blanket and making strange noises, the Third Hokage fell into deep thought...

"Reporting to Lord Third, Lord Danzo is outside requesting an audience."