"Ugh…"
The sound that escaped my throat wasn't human. It was low, guttural, and for some reason it made the birds scatter from the nearby trees. Not the best way to start my new life, huh?
I opened my eyes to see the night sky. The stars blinked down at me innocently, as if they didn't just watch me crash-land face-first into the dirt like a drunk pigeon.
I pushed myself up slowly, groaning. "Okay… what the hell just happened? Did God finally uninstall me from Earth and re-download me into… wait…"
I caught sight of my hands. Pale. Smooth. Almost porcelain-like. My fingernails looked sharper, like natural daggers. And my reflection on a puddle nearby? Let's just say my face looked like one of those villains who could seduce your girlfriend while burning your house down at the same time.
"…This is not me."
I touched my chest, and a terrifying realization hit me like a rasengan to the face. My body wasn't human anymore. I felt it—cells wriggling, regenerating, pulsing with an overwhelming vitality that made me feel both alive and dead.
Then the memories slammed in.
Demon King. Muzan Kibutsuji. Demon Slayer universe. His powers. His hunger.
And now, apparently, mine.
"Wait… I got isekai'd into Naruto world… as Muzan?!"
Before I could even figure out whether this was a win or a nightmare, a blue screen popped up in front of me.
[System Activated]
Congratulations, Host.You have been chosen as the inheritor of the Demon King's powers.For each body consumed, you will gain:
Sunlight Resistance (minutes depending on target's strength).
Chakra, Chakra Affinities, and Random Jutsu (only from ninja).
Resistance only decreases while under direct sunlight.
If resistance reaches zero, body will begin to burn.
"…So basically, I have a human-flesh-powered sunscreen subscription plan. Nice."
Just as I was processing that, the ground in front of me twisted. Black goo oozed up from the earth, forming into a slimy humanoid shape with a single glowing eye.
Of all people… no, of all things… it had to be Black Zetsu.
"Oh, great," I muttered. "Discount Venom showed up."
The creature tilted its head at me, expression unreadable. Then it lunged, its arm forming into a sharp blade aimed straight for my chest.
I should've been terrified. But instinct took over. My body healed the wound even before the blade fully pierced me. Flesh sealed, bones realigned, skin smoothed over. Like nothing happened.
Zetsu froze.
"What… are you?"
I smirked. "Skincare enthusiast."
He didn't laugh. Rude.
Instead, he swung again. But this time, I caught his gooey arm, and for some insane reason my instincts screamed at me: Eat.
So I did.
I sank my teeth into him.
"Wait, wai—WHAT ARE YOU—STOP—AGHHHHHHH!"
His black sludge dissolved in my mouth like expired pudding. Bitter, earthy, disgusting… but also strangely addicting. I swallowed, gagging at the taste but immediately feeling power surge through me.
[System Update]
Consumed: Partial Black Zetsu.Reward: +25 Minutes of Sunlight Resistance.Bonus Unlock: Basic Wood Release.
I froze. Then I burst out laughing. "No way. NO WAY. I just ate pudding-Venom and got WOOD STYLE?!"
Even Zetsu looked shaken. His eye narrowed. "You… ate me? You stole my power?"
"Stole? Bro, you practically advertised yourself as a snack. Don't blame me for taste-testing."
For the first time, Black Zetsu looked unsettled. But then he chuckled, low and dark. "Interesting. You are dangerous… but useful. Perhaps we can work together. You want flesh, yes? I can provide it. In exchange, you infiltrate Konoha. Gather information. Be my eyes."
I tilted my head. This was basically a devil's contract. But hey—he was offering free meals, and I needed a cover story.
"Deal," I said, flashing a smile sharp enough to cut glass. "Just make sure the snacks are fresh."
And like that, the most dangerous parasite in Naruto made me his "partner."
Or so he thought.
Inside, I was already planning how to eventually eat him whole.