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In the shinobi world’s final moments, Sasuke Uchiha dies protecting Boruto from Code’s ambush. But instead of fading into nothingness, his soul is pulled into another world — By someone? By taken on soul to another that beign soul shatters into 2 pieces.
At that exact moment, a baby is born in the human world: Iruma Suzuki, to parents who never wanted him. He doesn’t cry. His eyes are too sharp. His aura feels... wrong. That’s because deep within him, the soul of Sasuke Uchiha now sleeps.
Iruma is raised not with love, but with burden. Forced to work and obey, he becomes a silent tool to his parents, used and forgotten. When they sell him to a demon merchant, Iruma believes this is the end. But fate has one more twist.
Iruma is Sold to Sullivan, one of the 13 Demon Crown Kings. Instead of cruelty, Sullivan offers him warmth, love, and a family — something Iruma never had. That’s why Iruma Never hides his sword and seals his eye behind a handband. But How did he unlock Mangekyou sharingan ?


But before that, Iruma Long ago think as 3 years ago Iruma see a man .  He stood at the edge of the cliff, the wind tugging at the long, obsidian cloak that draped over his frame like a shadow given form. A single sword hung at his hip, the sheath worn from countless battles. His outfit, dark and sleek, clung to his form for ease of movement—high-collared, with muted blues and blacks blending into the night. 
A metal guard wrapped around his wrist, and a single cloth band tied across one eye, hiding the power that could shatter mountains. He rarely spoke unless necessary, and when he did, his voice was low, calm, and carried the weight of a man who had seen too much.
His name is Kuro Akari. He is a very kind guy. When he saw Iruma in that position, working so hard, he thought he could help him. So he took Iruma with him, although Iruma returned home at night every day. And now, he works under him.
He trains Iruma like a teacher, giving him some tips—although he doesn’t need to—but he still did. Iruma, seeing this, was reminded of his old self『 sasuke 』… but in a better version [ Like kind heart and pure soul ]. So he accepted his offer.
And that’s how it began.
One day, an unknown demon crossed the borderline and came to the human world. And by some fate, that demon met Iruma. With just a glare, Iruma was scared. Although Iruma had trained hard, in front of that demon, he was like an ant facing the sun.
At that time, while trying to protect him, his teacher—Kuro Akari—came and stood in defense. That demon rushed toward Kuro and, while toying with him for two minutes, Iruma ran to hide. Later, that demon killed Kuro-sensei.
Iruma was really hurt.
This time, it felt just like how he lost his family, brother, and clan.
Now it was the same.
When Kuro is killed by a powerful demon, Iruma’s world collapses again. His grief ignites the Raven Eye — a mysterious mutation of the Rinnegan. He takes up his mentor’s cursed sword, born from pain and vengeance. His power awakens fully… but so does his hatred.
『And that Being name is Aarimon ! The strongest Demon To ever exist』
But throughout Iruma’s training, Iruma unknowingly got a new skill activated — Soul Connect. If somebody dearly says something to him, he can’t refuse. [ Like Original Iruma ]
But if somebody has guilt or bad intent, he can sense it.
This is not the tale of a hero nor a villain.

Welcome To Demon School ! Iruma Kun 『 Sasuke Uchiha 』

1. Malveris Vantheil – "The Eye of the Void"

Race: Ancient Voidborn Alongside with Aarimon.

Weapon: "Veylun – Blade of Forgotten Truths"

Power: Causes illusions so real they can injure the mind. Cuts don't hurt the body, but shatter willpower and perception.

2. Crymora Vilethane – "The Widow Queen"

Race: Demon of Desire

Weapon: "Savorra – Kiss of the Thorns"

Power: Whip made of sentient thorns that inject toxins—physical and emotional. Victims feel overwhelming guilt, grief, or lust.

3. Vul'tarak Ignox – "The Scorched Tyrant"

Race: Fireborne Titan

Weapon: "Ashkarn – Core of Eternal Flame"

Power: Hammer that builds heat with every swing. After 7 strikes, it explodes like a miniature sun, resetting the battlefield.

4. Nekraal Mournveil – "The Gravedancer"

Race: Undying Warden

Weapon: "Dirgemaw – Chains of Unrest"

Power: Binds souls instead of bodies. Those captured hear the screams of everyone they failed. Can pull souls out of living bodies.

5. Thyrexion Solbane – "The Chrono Glutton"

Race: Time-Leech Demon

Weapon: "Eorcryn – Clockfang Reaver"

Power: Can "cut" moments from time. If the blade hits, the enemy loses seconds or minutes of memory and function.

6. Seraphyx Luxfall – "The Broken Star"

Race: Celestial Fallen

Weapon: "Lazquiel – Blade of Inverted Light"

Power: Light slashes that deal no pain until you move. Staying still nullifies the attack, moving causes instant internal slicing.

7. Draegon Mor'Khan – "The Blood Tempest"

Race: Warborn Berserker

Weapon: "Grangnir – The Hungering Cleaver"

Power: The more it cuts, the heavier it becomes—until it can cleave mountains. But it feeds on the user's own blood as fuel.

8. Zephiriel Nyxen – "The Wingless Wind"

Race: Skyshade Demon

Weapon: "Sylphwrath – Edge of the Unseen"

Power: Blade is invisible and silent. Every swing echoes seconds after it lands. Cuts are delayed, making them hard to block.

9. Umbreign Thanor – "The Night Architect"

Race: Realmshifter

Weapon: "Labyrinthus – Keyblade of Dissonance"

Power: Every strike shifts the environment. Rooms loop, ground disappears, enemies fall into infinite mazes.

10. Erebakar Varn – "The False King"

Race: Puppet Lord

Weapon: "Throneless – Blade of Hollow Oaths"

Power: Copies the power of whoever it points at, but always at 80% strength. It also weakens the opponent by stealing their title or authority briefly.

The Satanic Circle – Aarimon’s Ten Commanders