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Chapter 6 - Chapter 6: Demon School?! I’m the Substitute Sex-Ed Professor!?

The throne room wasn't quite ready for me.

After the Hero's awkward visit, the demon queen Malvaria looked at me with a smirk that could melt glaciers.

"Since you're supposedly my consort," she said, swirling her glass of crimson liquid, "it's time you prove it. You'll teach a class at the Demon Academy."

"A class?" My voice cracked like a goblin's knuckle.

"Yes, dear. The class."

I blinked, hoping I misheard.

"No, seriously. The Human-Demon Intercourse Integration course. Today."

She leaned in, eyes gleaming. "If you survive, I might keep you around."

[DING!]

[Quest Updated: Survive Demon School Sex-Ed Class]

[Objective: Teach without losing dignity or life]

[Rewards: Respect, Harem Growth, and Possibly a Lesser Curse]

The Demon Academy was a sprawling labyrinth of twisted spires, floating platforms, and students who looked like walking nightmares with questionable fashion choices.

I shuffled into the lecture hall—a cavernous room filled with teens sporting horns, tails, wings, and skin colors from smoky gray to molten gold.

The chatter stopped. Every eye turned to me like I was a stray dog walking into a lion's den.

A tall demon in a pristine lab coat adjusted her glasses.

"I am Professor Syllia," she said, voice dry as cracked parchment. "I'm your teaching assistant today because our regular instructor has… been sacrificed."

I swallowed.

"I will… supervise. Good luck."

The chalkboard behind me was already scribbled with explicit diagrams.

Great.

"Class," I began, voice shaking, "I am Lord Ren Nightshade. Today we'll discuss… uh… cultural bonding."

A shadow slinked forward.

She was an ogre girl—huge muscles, a grin wide enough to swallow a horse, and a low voice that rumbled like thunder.

"I'm Gorgala. So you're the human who fooled our queen?"

"More like bluffed," I corrected.

She smirked. "Does bluffing mean you're good at this?" She flexed.

I gulped.

Across the room, a pair of crimson wings fluttered.

"Carmilla Noir, Student Council President," purred a petite vampire girl with sharp fangs and eyes that glowed faintly red.

"If you're teaching about love, don't waste our time."

I blinked. "Love is complicated."

She sneered. "That's what we want to hear."

[DING!]

[Harem Candidate Added: Carmilla Noir | Affection: 10% | Tsundere Vampire]

[New Ally: Gorgala Smash | Affection: 5% | Tomboy Ogre]

I decided to start with theory.

"Human pleasure points are—uh—mostly emotional," I stammered. "Physical contact is important, but trust and mutual respect—"

"BORING!" shouted a lamia teen, tail flicking. "Show us something juicy!"

"Oh gods…"

I pulled out the "Demon-Anatomy Flipboard" the system handed me.

The diagrams were explicit. Anatomical charts mixed with suggestive cartoon demon couples.

The class gasped, and then moaned.

I buried my face in my hands.

Suddenly Carmilla stood.

"We need proof. Live demonstration."

The room exploded in cheers and hoots.

I pointed at Gorgala.

"Uh… you're my partner?"

She grinned, cracking her knuckles. "I like this game."

Malvaria's voice came over a magical speaker.

"Remember, dear. Teach well, or you're mine for the night."

I blinked.

The class paired off, a flood of demon teens whispering and groping.

I tried to keep control.

"Cuddling after battle helps form magical bonds!"

"More like cuddle before battle," Carmilla whispered, smirking.

I held my ground.

"Eye contact, verbal communication, and respect!" I shouted over moans.

Gorgala caught my gaze and didn't let go.

[DING!]

[Harem Affection +10% (Gorgala and Carmilla)]

[Reputation: "Confused But Charming"]

After class, I collapsed in the courtyard.

Lira, the blushing succubus maid, brought me water.

"You survived!" she beamed.

"Barely. I'm scarred for life."

She smiled. "You taught them something more important."

"What?"

"That even demons want to be loved."

I almost smiled.

Back in the chambers, Malvaria sat on the bed, legs crossed.

"You did well," she said, eyes burning with desire.

"I was a walking disaster."

She stood and pulled me close.

"Then consider this your extra credit."

[STEAMY SCENE REDACTED]

[DING!]

[Chapter Complete!]

Ren's Level: 9 | Charisma +2 | Harem Affection: Malvaria (55%), Lira (35%), Carmilla (20%), Gorgala (15%)]

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