❤️ Chapter 40 – Akane’s Bitter Lessons – Part 1 (R18)

Words : 994 Updated : Oct 6th, 2025
The next morning, my phone buzzed with a message from Akane. Dark Ruby ????: Master! Aoi's being super weird! She's just sitting there reading a fashion mag and said my workout was "excessively loud." WHAT DID YOU DO TO HER?! And you said you had plans for "others." That means me, right?! Is it my turn?! ???? I chuckled and typed back. "Your turn. Meet me at the abandoned factory west of the city. Special one-on-one training." The reply was almost instant. Dark Ruby ????: AN ABANDONED FACTORY?! ONE-ON-ONE TRAINING?! HELL YEAH! THAT'S WAY BETTER THAN SOME BORING MOVIE! I'M GONNA GET SO STRONG! I'M ON MY WAY, MASTER! DON'T START WITHOUT ME! ???????? I headed to the factory. It was a huge, crumbling mess of rust and concrete, a leftover from the city's old industrial park. Perfect for what I had planned. No one would hear the noises and screaming. I didn't have to wait long. I heard her coming, the sound of feet pounding on pavement, and then she just vaulted over the crumbling outer wall like it was nothing. She was already in her workout gear: shorts and a sports top, and her face was flushed, her eyes blazing with excitement. "Master! I'm here!" she yelled, her voice echoing in the huge, empty space. "This place is awesome! So, what's the plan? Are we gonna fight?" "You gonna teach me a secret move? Are we gonna blow something up?!" She was practically vibrating. "Just tell me what to punch!" "We're going to fight," I said, my tentacles uncoiling around me. "You've been on a winning streak with the team, Akane, against... small fries villains and monsters. It's making you cocky and reckless." "So today's lesson is simple: how to fight an opponent you absolutely cannot beat." Akane's grin just widened. The sight of my tentacles didn't scare her; it just made her more excited. "Impossible to beat? Heh. You say that like it's a bad thing, Master!" "There's no such thing as an opponent I can't punch!" She immediately transformed, her workout clothes vanishing in a flash of red energy, replaced by the spiky armor of Dark Ruby. Her fists crackled with power. "Alright, Master! Bring it on!" She didn't wait for an invitation. With a battle cry, she launched herself into the air, fist pulled back for a flying punch. "RUBY SMASH!" I didn't even move. A single, thick tentacle shot up from the concrete floor, faster than she could react. It didn't block her punch, just caught it in the air. The red energy around her fist fizzled out as the tentacle absorbed the entire impact. Aoi just dangled there for a second, her fist buried in the unyielding flesh, her eyes wide with total disbelief. "...Huh?" Before she could even process that, two more tentacles shot out, wrapping tightly around her waist and ankles. She was trapped, helpless, in mid-air. "Every time you lose," I said, my voice low, "the punishment will be one climax." One of my tentacles slithered down, hooking into the waistband of her shorts and pulling them down. Another immediately took its place, pressing against her cunt. Akane's eyes went wide, a mix of outrage and dawning excitement. "Punishment?! That's not fair! This is training!" "And... wait, a climax?! That's a weird-ass punishment!" Her tough talk dissolved into a sharp gasp as the tentacle found its mark. "H-Hey! Cut it out! I'm trying to fight here! This doesn't count as losing! I haven't even surrendered!" Her words dissolved into a frustrated groan as the pleasure built, fast and overwhelming. The tentacle's movements became more targeted, merciless. "N-No... Not yet... I can... I can still fight..." she panted, but it was a losing battle. A helpless cry was torn from her as her first orgasm hit, a full-body spasm that left her limp and trembling in the tentacles' grip. I loosened their hold and walked over, offering her an energy drink. "Five-minute break, then we go again," I said, patting her on the head. "Try harder next time." The tentacles gently lowered the trembling, gasping Akane to the dusty factory floor. She sat there for a moment, dazed, her face bright red. She snatched the energy drink, her hand shaking a little. "That wasn't a fight," she panted, getting to her feet and leaning against a rusty pillar. "That was bullshit." A new fire was burning in her eyes. "Five minutes. Fine. But next round, I'm not holding back. And you better not go easy on me, Master." I waited patiently for three minutes. While she was still catching her breath, I sent a tentacle crawling through the shadows behind her. A single, needle-sharp point pricked the back of her heel. A wave of warmth shot up her leg, followed by a dizzying rush. The aphrodisiac. A much stronger dose this time. Her eyes went wide. The can she'd been crushing clattered to the floor. Her legs gave out from under her. "Wh-What...? But, the break... you said..." A slow, wicked grin spread across my face. Lesson number two: the enemy won't always play fair. "Come on," I taunted, sitting on a pile of rubble nearby. "Is the mighty Akane too weak to keep going?" Akane glared at me, her teeth gritting. Her body was screaming with a chemically-induced need, but her warrior spirit refused to fold. "I'm... not weak!" With a roar of pure frustration, she forced herself back to her feet. She transformed again, the red energy swirling around her, more chaotic and unstable than before. "I can still fight!" She tried to summon her power, but it just sputtered. She couldn't focus. With another frustrated cry, she abandoned her powers and just charged at me, a wild, desperate tackle.

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contents
Contents
I Became a Tentacle Monster that Corrupts Magical Girls
I Became a Tentacle Monster that Corrupts Magical Girls Author:tentacle_master
Character Illustrations Vol 1 Oct 3rd, 2025
Chapter 1 – The Talking Rock Oct 3rd, 2025
Chapter 2 – Fallen Heart Oct 3rd, 2025
Chapter 3 – The Envious Sapphire Oct 4th, 2025
Chapter 4 – Dark Sapphire Oct 4th, 2025
Chapter 5 – Dark Luminous Sisters Oct 4th, 2025
Chapter 6 – A Liberator’s Philosophy Oct 4th, 2025
Chapter 7 – Idol and Artist Oct 4th, 2025
Chapter 8 – Star Empress Oct 4th, 2025
Chapter 9 – Grumpy Grandma Gemgem Oct 4th, 2025
Chapter 10 – Dreamland Oct 4th, 2025
Chapter 11 – Ice Queen’s Healing Oct 4th, 2025
Chapter 12 – New Doctrine – Old Grudge Oct 4th, 2025
Chapter 13 – Homura’s First Mission Oct 4th, 2025
Chapter 14 – Doctor Overdrive Oct 4th, 2025
❤️ Chapter 15 – Two Against One (18+) Oct 4th, 2025
Chapter 16 – Spare Keys and Traditions Oct 4th, 2025
Chapter 17 – A Maiden’s Burden Oct 4th, 2025
Chapter 18 – Tarot Reading Shows The Truth Oct 4th, 2025
Chapter 19 – A Priestess’s Pact Oct 4th, 2025
❤️ Chapter 20 – Corruption of a Maiden – Part 1 (R18) Oct 4th, 2025
❤️ Chapter 21 – Corruption of a Maiden – Part 2 (R18) Oct 4th, 2025
Chapter 22 – The Fallen Stars, Assemble Oct 4th, 2025
Chapter 23 – The Fortress Against Nightmares – Bonus Chapter Oct 6th, 2025
Chapter 24 – Ice Queen’s Punishment Oct 6th, 2025
❤️ Chapter 25 – Aoi’s Private Performance (R18) Oct 6th, 2025
❤️ Chapter 26 – Promise to the Princess (R18) Oct 6th, 2025
❤️ Chapter 27 – Two Against One – The Rematch (R18) Oct 6th, 2025
Chapter 28 – A Glimpse of True Justice Oct 6th, 2025
Chapter 29 – The Grinding Oct 6th, 2025
Chapter 30 – Operation: Spoil Miki Rotten Oct 6th, 2025
Chapter 31 – A Star is Born Oct 6th, 2025
Chapter 32 – Reward for My Star Oct 6th, 2025
❤️ Chapter 33 – The Priestess’s Spare Key (R18) Oct 6th, 2025
Chapter 34 – Sound of Shattered Silence Oct 6th, 2025
Chapter 35 – Sapphire and Ruby (Bonus Chapter) Oct 6th, 2025
Chapter 36 – Eve of War Oct 6th, 2025
Chapter 37 – City Aquarium Trip Oct 6th, 2025
Chapter 38 – The Calm Before the Storm Oct 6th, 2025
❤️ Chapter 39 – In the Love Hotel with my Aoi (R18) Oct 6th, 2025
❤️ Chapter 40 – Akane’s Bitter Lessons – Part 1 (R18) Oct 6th, 2025
❤️ Chapter 41 – Akane’s Bitter Lessons – Part 2 (R18) Oct 6th, 2025
Chapter 42 – A Rooftop Serenade Oct 6th, 2025
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