The Incubus System Chapter 428

Novel: The Incubus System Author: Nanakawaichan Updated: Jun 17, 2026

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Now reading: Chapter 428 from The Incubus System, a Smut novel by Nanakawaichan.

The Incubus System Chapter 426. Demon Lord Form

“What—AHHH!” Before I finished my words, the pain pierced my body. A strange power flowed from his grips. That power spread, filling every cavity in and making my body excruciatingly in pain. My body felt like it was crushing from the inside. I felt like every bone in my body was broken. All the organs in my body were stirring. It was the sa pain when Lilieth opened my access.

[Warning!!!]

[Damon Arcano Malignus has interfered with your system!]

[Damon Arcano Malignus has breached your skill tree function!]

[Change Race to Royal Incubus.]

[Your Maximum level now is 120]

[Unlocked Talent Demon Lord Form.]

[Unlocked Royal incubus’ skill: Teleportation.]

[Unlocked Royal incubus’ skill: Dark Storm.]

[Unlocked Royal incubus’ skill: Incubus Climax.]

[Unlocked Royal incubus’ skill: Evil Eye.]

[Unlocked Royal incubus’ skill: Camouflage.]

[Unlocked Royal incubus’ skill: Hell Inferno.]

[Unlocked Royal incubus’ skill: Bloodpact.]

[Energy Siphon breakthrough to level 8]

[Shadow Ritual breakthrough to level 2]

[Demonic Energy breakthrough to level 10]

[Congratulations! You have beco a Royal Demon!]

[Bonus: VIT 500, WIS 100. INT 100]

[Demon Lord’s aura will activate in… 5…]

[…]

[Error! Malignus surna cannot be equipped!]

[Please remove the Protection of the Demon King!]

[Na: Damian Lucio]

[Ages: 19]

[Level 100]

[Exp: 0.00% ]

[Race: Demon – Royal Incubus]

[Title: The Abyss Slaughterer]

[HP: 8750/8750]

[DP: 1832/1850]

[STR: 200 100] [VIT: 875 ]

[AGI: 70 35] [LUK: 50 ]

[INT: 300 150] [WIS: 185 ]

As soon as he released , I staggered backward a few steps. My hands clenched my chest.

“AHHHH!” I raised my head and scread at the top of my lungs. I could feel my hands turning into a pair of fearso claws. Thorns and thick black skin covered my body, replacing my clothes. It also changed my skin. My ears turned into an elf’s. My tail turned out to be a lot ghastly and thicker than before. Two other pairs of black wings appeared behind .

[You have activated your Demon Lord Form.]

[All skills effectiveness 50%.]

After the pain was gone, I took a couple of quick breaths. My gaze was fixed on my palms.

“What did you do to ?” I knew I could deactivate it but I was completely freaked out so I couldn’t help myself but yell. I didn’t even need a mirror to know that my appearance had completely changed.

“I have turned you into a true demon lord. Are you happy now?” Despite my panic, he looked relaxed.

I flipped around my hand and stared at them in horror. I felt like a monster, just like the demons in the Abyss. But what could I do? Demons were this kind of creature. We were monstrous creatures that could take the form of a human body.

Trying to calm myself down, I tried to look on the bright side of this. I was stronger now, far much stronger.

‘Ah, I get it…’ Now I understand why he asked to use this armor. Because it covered my existence, even though I already got my status.

“I see…” I returned my gaze to him.

“This was your plan from the start…”

He smirked.

“This is not all.” He canceled his demon lord form and changed to his usual form. So did I.

Then he stretched his hand forward and opened a portal.

“Follow .”

As he ordered, I walked after him. As soon as we exited the portal, we arrived at an ancient stone chamber filled with strange writings resembling symbols around . A huge big gap in front of us contained a terrifying dense black miasma. In the middle of the huge gap, a pair of black and white swords plunged into the ground. I could feel a thick demonic power from the black sword and a thick angelic power from the white one.

The black sword’s cross-guard was shaped like bat wings. A black crystal that emitted a thick dark aura in the middle of it. The size of its blade was slightly larger than the rapier. While the white sword’s cross-guard was shaped like a folded angel wing that was attached to the end of the handle, making it look like a real rapier. Except the blade was thicker than that.

I cast my gaze around . My frown on my forehead. Confusion overca since this place felt foreign to , yet I felt a strong feeling of nostalgia from here. No, not the place, but the swords. I could feel a strong call from those swords as if they were begging to take them out of here.

“Good afternoon, Your Majesty, Your Highness. Welco to Cursed Mountain.” A male voice coming from behind us, made realize where we were.

I turned around and found a demon with a familiar face bowing his head to us.

“Good afternoon, Alfred,” I replied.

While Lord Damon decided to imdiately get down to business.

“How’s it going around here?” he didn’t even look at Alfred.

“Nothing much. Just a few Two Headed Swamp Demons from other areas have managed to take over the empty territory after His Highness cleared it. Now they are breeding there,” he replied.

‘Ew… Breeding?’ I frowned in disgust as so disgusting scene flashed through my head. Especially since they kink a little… Unusual.

‘Well, who am I to judge?’ On the other hand, I realized I also did a lot of weird kinks after I turned into an Incubus.

“I see…” Lord Damon said casually. I guessed it was a common thing here.

“What brings you here, Your Majesty?” asked Alfred.

Lord Damon pointed at with his chin.

“I brought him here for the sword.”

“Ah! Congratulations, Your Highness. Those swords have been waiting for a long ti,” Alfred said politely.

“Thank you. But what are those swords? Why are they there?” I asked.

It was Lord Damon who answered .

“Nightmare and Redemption.” I turned to him.

“Those swords once belonged to Erebus. I take them to the dark dinsion and seal them here. They will bring calamity if I leave them. Their power is too much for humans to begin with.” He turned to .

“Since Letos’ level is way above the others I decided to give one to you.”

“Only one?” I made sure since the swords looked like a pair.

“You have to destroy your angelic seal first before you can take the other one.”

“Or?” I asked him to continue.

“Or it will recognize you as a demon and burn you to death,” he warned .

I nodded repeatedly.

“I see.” Then I returned my gaze to the front.

“So the black sword first.”

Note: Damian’s Demon Lord Form is in my Discord Channel

>Read the original on /book/the-incubus-system_17150947806784305

>Read more than 135 chapters ahead of TIS 5 weekly update 39 Extra R18 chapters access to all R18 ASMR R18 poll R18 scene

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