My Succubus Harem System In The Reverse World

The moment our lips met in that desperate cavern, a surge of refined mana exploded through the connection.

I didn’t give her a light charge. I opened the floodgates of my core, using the Mana Redirection loop to force premium energy straight down her throat.

Rei’s entire body seized against mine.

Her eyes went wide, locking onto my yellow pupils as the artificial pleasure and the overwhelming power hit her nervous system like pure adrenaline.

It wasn’t gentle. It wasn’t romantic. It was an aggressive, competitive transaction of vital force.

Then the exact thing I had been terrified of happened.

She didn’t push me away. She didn’t gag or fight the intrusion.

The second the refined power hit her dying mana veins. shattering her exhaustion and flooding her with strength she had never felt in years of training, her Vanguard instincts went entirely feral.

She wanted it. She craved the ease of it.

Rei caught the back of my neck with her bleeding hand, fingers digging hard into my skin as she aggressively pulled me down.

She kissed me back with a starving, violent desperation. Her tongue crashed into mine, wet, hot, and completely unhinged, dragging the taste of iron-mixed blood between our mouths as she greedily sucked the premium energy straight out of my lungs.

Fuck.

[Energy Transfer Maximized!]

[Rei — Mana Capacity Overloaded: 140%]

[Innate Class Mutation Triggered: Blood-Forge Core Evolution...]

Rei bit my lower lip hard, then broke the kiss with a loud, wet pop. A thin string of glistening saliva and blood connected our lips in the green gloom.

I didn’t react.

The cuts on her hands began sealing themselves. Color flooded back into her face. The violent red warnings on my interface dropped in real time.

She shoved me away hard enough that my back hit the stalagmite.

I stayed on the floor for a second, catching my breath. My own core hummed with the feedback of her arousal and the residual drain.

Rei stood. Her breathing was still sharp, but the tremor in her hands was gone. The pale, deathly tint had vanished.

She looked at her palms like she no longer recognized them.

"Ruby! Saber!" Her voice cut through the chamber, carrying an unyielding, terrifying authority that hadn’t been there a minute ago.

"Stand back. I’m breaking these shitheads apart."

In one smooth motion, she lifted both arms. The red mana didn’t form a greatsword this time. It solidified into a massive, jagged pair of twin combat axes that brimmed with a high-frequency vibration so intense it literally sliced the air currents around her.

I wiped the smear of her blood from my lips.

Gianna was right to warn me.

This class was indeed a curse.

[Target Status: Rei Lawless]

[Favorability: 12 / 100 (Hostile, Obsessed)]

[Arousal: 85 / 100 (Peak Overload)]

[Rating: 9.6]

Ruby’s voice came through the shared link, stunned.

"What the hell did you just do to her?"

"Bought us a chance," I answered, pushing myself to my feet.

"Don’t waste it."

Saber’s white eyes were fixed on Rei, reading the sudden spike in heat and mana density.

"Her signature changed. It’s denser. More stable. But the cost is still there. I can feel the strain under the surface."

Rei didn’t wait for further commentary.

She launched herself at the nearest Goliath with a speed that made her earlier charge look slow.

The twin axes blurred. The first strike hit the construct’s knee joint with a sharp, ringing crack. Stone chips exploded outward. The second axe followed immediately, driving into the same point from the opposite angle.

The Goliath’s leg buckled.

Rei didn’t pause.

She stepped in, both axes rising, and brought them down in a crossed execution cut across the creature’s neck. The stone head separated with a grinding scream of breaking granite and crashed into the green water.

One down.

The remaining two turned toward her as one.

"Left one’s open for three seconds!" Saber called, already moving to draw the second construct’s attention again.

Ruby stayed back, hands glowing, ready to intervene if Rei’s core spiked the wrong way.

I formed a combat chain and lashed it around the third Goliath’s arm, yanking hard to disrupt its balance.

The solidified links held for only a moment before the creature’s raw strength threatened to drag me off my feet, but it was enough.

Rei used the opening.

She closed the distance in a blur, axes spinning.

One slammed into the Goliath’s elbow joint. The other carved a deep groove across its chest plating.

Sparks of stone and residual blood-mana scattered through the air.

The construct swung at her with both fists. She ducked under the first, sidestepped the second, and answered with a rising cut that took its right arm off at the shoulder.

"She’s not stopping," Ruby muttered, half in awe, half in concern.

"She can’t," I said.

"Not yet. The mana is still riding her."

Rei finished the second Goliath with a brutal overhead strike that split its head down the center. The body collapsed in a heap of broken stone and moss.

Only one remained.

It roared, a grinding, tectonic sound, and charged her directly.

I snapped the combat chain around its ankle and pulled with everything I had.

The Goliath stumbled. Saber’s whip-sword cracked across its face, buying another half-second.

Rei stepped in and ended it.

Both axes came down together.

Slash.

The final impact shook the entire chamber.

The last construct toppled backward and shattered against the far wall.

Silence fell, broken only by the steady drip of water and Rei’s heavy breathing.

She stood in the center of the destroyed basin, twin axes still in her hands. The high-frequency vibration slowly faded. The weapons dissolved back into liquid and returned to the sealed cuts on her palms.

For a long moment, no one spoke.

Then Rei turned her head and looked straight at me.

Her eyes were clearer than before, but something new sat behind them, something sharp, hungry, and not stable.

"You," she said, voice low.

"What did you do to me?"

I met her gaze without flinching.

"A temporary fix. And a warning. That power isn’t free. You felt how good it was. Don’t get addicted to the shortcut."

Her jaw tightened.

"I didn’t ask for a lecture."

"You’re getting one anyway." I stepped closer, keeping my voice even. "You almost got ejected. You almost got the rest of us killed. Next time you decide to panic-spend your entire blood supply, remember that I can take it back just as easily as I gave it."

Ruby cleared her throat.

"As much as I hate to interrupt the staring contest, the timer is still running. Twenty-three minutes left. And Saber’s reading more signatures deeper in."

Saber nodded, white eyes unfocused as she mapped the tunnels ahead.

"Three more clusters. Smaller than the Goliaths, but faster. We should move before they reach this chamber."

Rei wiped the last traces of blood from her hands and started walking toward the next tunnel without another word.

She didn’t offer any thanks. She didn’t acknowledge the kiss and moved away.

I watched her go for a second longer than necessary.

The Favorability reading still sat at a hostile 12. The Arousal bar remained dangerously high.

Ruby fell into step beside me and spoke quietly.

"You’re playing with something that can turn on you."

"I know."

"She looked at you like she wanted to either kill you or climb you. Maybe both."

"I know that too."