Chapter Text

The ideas…..they speak to me…..they burrow into my brain…..they whisper to me at night…...the things they make me do…...*cough* Anyway. I’m sure many of us here know about the Neptunia series and the infamous Conquest Ending from Neptunia 2. So I thought, man this was a depressing ending. Let’s redo it with lewds! We’re going to see dubcon, moral degeneration, corruption, hypnosis, mind control, and futa as well. If any of these things bother you, then this story is likely not going to be for you. What could possible go wrong? Besides everything. Well I haven’t scared you off yet, so lets get started!

Updated the chapter for some missing formatting involving influence on Nepgear's mind. Read the chapter again if you read it already.

Hyper Dimension Neptunia mk 2

R-18 Edition



Nepgear’s Road To Conquest

It was evening in Planeptune. The Basilicom lights were mostly dim as the staff had retired for the evening and gone home. The only residents left were Histoire, Neptune, and Nepgear. “Where did it all go so wrong?” Nepgear whispered as she sat on her bed in her dark room. An ominous looking sword laying in her lap that she studied, lost in thought. It had all happened so fast….. After being rescued from the Gameindustri Graveyard, she had left on a journey with Compa and IF to enlist the help of the Mascots of the countries and the other CPU Candidates Uni, Rom, and Ram in an effort to save the other CPUs and bring them back home.



It had been a rough trip but they had persevered and successfully liberated the CPUs from the clutches of their enemies and brought them back safely after a couple of close calls. She had finally managed to bring her sister home at last. She could still vividly remember that first hug she had given and received from Neptune in the heat of the moment after saving her. It was one of her happiest moments in years. With the other CPUs back on their side, the CPU candidates along with IF, Compa, and the other Makers begun their counterattack against Arfoire’s forces and her generals the Four Felons.



One by one each were hunted down and destroy as three out of the Four Felons were defeated as the groups powers grew with each victory. Soon all that remained was their leader CFW Magic, believed to be an Evil CPU was standing between them and preventing the revival of Arfoire the Deity of Sin and claiming final victory. That was when it all began to fall apart. All of the Candidates had trained hard for this rematch, each of them achieving brand new HDD forms to boot and the other CPUs had recovered enough to join the battle as well! With the other Makers involved as well they outnumbered CFW Magic over ten to one. Even CFW Magic couldn’t stand up to this! Oh how wrong they were…..



Even with all the damage done to Arfoire’s syndicate and the Shares they had recovered to empower themselves with, Magic was still nightmarish powerful. All of their strongest attacks were shrugged off with very little damage and her retaliations forced them into a frantic cycling of healing just to keep up. They had burned through all of their healing items and everyone else was down too wounded to fight any further. Nepgear herself was on her last legs when her last desperate attack finally struck the Evil CPU down. Even as Magic’s broken body began to break down and fade away she mockingly sneered at their strength. Cruelly asking what they hoped to do against the Deity of Sin if they struggled to kill her, who’s strength paled in comparison to the evil Deity.



They had wanted to dismiss it as empty threats and boasting….but the seed of fear had been planted in all of their minds. This last battle had been won, but only by the barest of margins. Would Arfoire be even worse? CFW Magic’s final words was a chilling announcement. With her death and the devouring of her soul, the Deity of Sin had achieved the final boost of energy she needed to fully revive. That was when they felt it…. The feeling of the world screaming in pain at the first labor pains heralding the rebirth of the Deity of Sin. The wave of power that swept over them made the gap in power between them oh so painfully clear. Arfoire was beyond them… and she was going to kill them all…..



They had retreated back to the Basilicom to treat their wounds and hold a desperate counsel of war. Arfoire’s rebirth could no longer be stopped, they had to find a way to destroy her. It was then Nepgear had remembered the rumors of a legendary sword powerful enough to slay even the Deity of Sin herself. With no other viable options the group pooled their resources and searched for the blade, hoping to find a holy blade of salvation to save them in their darkest hour. They found the sword but this was no holy weapon. It was a blade of malice and evil, and it’s power fed on the divinity of the CPU’s themselves. If the sword was used to reap the lives of the CPUs and the CPU Candidates then it would regain it’s true power and become the sword Gehaburn and would be powerful enough to save the world. To save the world by bathing in the blood of the fallen, the surviving CPU or CPU candidate would deliver the rest of the world. They were horrified by what they had to discovered and resolved not to use the sword and began to search for other options.



Nepgear had suggested concentrating all of their Share Energy into a single CPU to amplify their power. It had seemed like the logical idea at the time. But none of them could agree on who the host would be…. None of them wanted to watch her nation fall apart and be destroyed once all of their Share Energy was lost. At the time Nepgear had just wanted everyone to survive. They had worked so hard to save the CPUs, she couldn’t bear the idea of having to see them all kill each other directly afterwards. She couldn’t stand the idea of having to raise her hand against Uni, Rom, and Ram.



Now as she brooded in her room in the dark quiet of the evening she had a chance to look back and reflect. She understood now that she had been naive. None of them would have been will to sacrifice their nation they had built and their people’s homes and livelihoods just to save their own lives. Could she break Planeptune’s back over her metaphorical knee just to save herself and Neptune? She had thought about all the people she had met over her journey and how much they had helped her. She just couldn’t do it…. She couldn’t and wouldn’t sacrifice Planeptune to save the world. She wanted to protect her people. With the complete inability to agree and the lack of any sort of plan, their alliance broke down as the other CPUs and Candidates left the party and returned to their nations in disgust, desperately searching for their own way to survive the upcoming apocalypse.



Even their human friends had dispersed and left the party as well, returning to their various nations as they explained they needed to be on hand to help defend against the rising surge of monsters as the Deity of Sin’s complete revival inched ever nearer. What they said was no doubt true, but she could read between the lines and see their unease at the possible hostilities to soon commence between the Goddesses and the nervousness at potentially having to support a side and become an accessory to Deicide against the very Goddesses they had sworn to protect. Nepgear couldn’t blame them for this either. Now the only one left in her party was Neptune herself. After an afternoon conferring with the oracle Histoire, they had decided on a final desperate plan. If the others wouldn’t consent to entrusting their Share Energy to Planeptune, they would take the Shares by force. Planeptune would conquer the other nations by stripping them of their shares. If their CPUs no longer had any power to resist, the citizens would have to capitulate. It pained her to have to do this, but there was no other way. They HAD to concentrate their power into one to have any sort of chance. Anything less was just inviting absolute annihilation.



Nepgear bit her lip as her grip on the sword tightened. Even she knew what would inevitably happen once she and Neptune commenced their “invasion”. The CPUs and the other Candidates would fight back. She would have to fight her friends. She knew they wouldn’t back down, no they COULDN’T back down. If they wouldn’t surrender, would she have to use the sword? Would she have to kill them? Her stomach roiled in nausea at the thought of it. They didn’t have time for a long protracted war to force surrender the normal way. The Deity of Sin would finish her resurrection in days, a week tops. There was only one way to force the issue to a speedy resolution and the others surely knew it.



“Can I really do this? Must I murder them to save the world?” she murmured in the stillness of her room.



Why do you hesitate child? You know what must be done to preserve this world.



Nepgear froze in shock as she looked around frantically, trying to locate the source of the voice that seemed to speak into her very mind itself. She gripped the sword tightly as she stood up and turned on the lights, still unable to see anyone else in the room.



“Who’s there!?! Who are you?” Nepgear demanding in a quavering tone, trying to present a front of bravery to the unseen voice.



You are the CPU Candidate of Planeptune are you not? You are their Deity, their Goddess in training. It is your responsibility to protect and defend them against all threats. Your pitiful waffling shames this holy duty. The voice said sternly in rebuke. Every minute that you delay gives the Deity of Sin more time to marshal her power and make your task that much harder. You must hurry and reap their power and bring this matter to a conclusion!



It was then Nepgear finally noticed a dim glow that pulsed in the sword in tune with the words she heard spoken into her mind. The sword of malice itself was speaking to her! It was alive!?!



“You...you’re the sword….you’re talking to me!?!” the confused girl stammered still trying to process what was going on. The sword hilt seemed to heat in her hand, as if to express the blade’s irritation.



Why are you continuing to waffle Nepgear! You are the wielder of the Legendary Sword Gehaburn! Act more like it! Your task is clear. Why do you continue to hesitate when the road ahead is clear? The other Goddesses have chosen to resist and have divided your strengths. If allowed to continue Gameindustri is doomed! If they will not listen to reason then you must strike them down and be done with it!

Nepgear grit her teeth as anger boiled inside of her. Now even her own weapon was condemning her? It was too much!



“How could you! They’re scared and worried just like we are! They’re all trying to find an answer to this dilemma!” she argued back, her voice starting to rise in volume.



They have thrown away their chances to preserve as much as they can and have now simply scattered to hide in their homes and wait for the oncoming slaughter! Just as you are! Cowering in your room like a child afraid to face reality! If you refuse to do what must be done then speak up! Cease your hiding and sniveling and speak your desires like the Goddess you strive to be!

The sword commanded as the grip Nepgear had her on her temper broke as she threw the sword on the floor.

“I DON’T WANT TO HURT THEM! I DON’T WANT TO SACRIFICE THEM ALL LIKE CATTLE TO SAVE THE WORLD! I WANT TO SAVE THE WORLD SO THAT WE CAN ALL LIVE IN IT TOGETHER!” Nepgear screamed in frustration as the stress that had been building up through the day finally burst out as she began to cry. The voice of the sword waited silently for a moment as Nepgear gathered herself together and tried to calm down.



There now…. Was that so hard to say? So then, a way to destroy the Deity of Sin without reaping the lives of the others. We must still harvest their power, but must do so without harming them. Perhaps there is still a way after all … the voice of the sword mused, taking a thoughtful tone. Nepgear eyed the weapon suspiciously, finding the sudden change in tone strange.



“What do you mean? What other way?” she asked, trying to hide the feeling of hope rising in her. Was there another way out of this? She was desperate for any other solution.



This will require a bit of finesse, as well as a lot of trust. Still this does not seem to be in an impossible task. Grasp ahold of me my wielder and I will show you what must be done.

Nepgear hesitated a moment at the strange request, but not seeing any harm reached down and picked up the sword and held it firmly in both hands.



“Alright, now what?” she asked.

Just hold still and I will begin …. around and checked the floor, surely she must of dropped it. As she moved Nepgear suddenly noticed something strange. Her underwear felt unnaturally tight and she felt something...foreign. Puzzled she stood up and turned toward the full length mirror in her room and hiked up the skirt of her dress to take a look and got the shock of her life!



“WHAT THE GOODNESS!?!” she screamed as she fell back into a sitting position on her bed. She had….she had a…..



You have a penis now Nepgear. The sword helpfully chimed in as it’s voice spoke into her head once more. Nepgear blushed brightly at the word as she glared at the window angrily, as if the offending extension would disappear if she stared at it hard enough.



“Gehaburn why do I have a p...penis? What have you done to me!?! WHERE ARE YOU?” she demanded.



I have merged with you Nepgear. Your new “addition” to your body is essentially me. The sword’s voice seemed to be almost proud as Nepgear’s blush deepened. Sweet Celestia her penis was the demon sword Gehaburn! Knowing her member was now classified as a “Divine Weapon” made the situation even more embarrassing than before.



“Why the goodness did you do that!!!” she yelled as she tugged her dress down to hide it from her sight. She tried not to shiver at the friction of her dress and panties against it. Feeling it stir slightly.



You said you wanted to save the world without slaying the other Goddesses did you not? Surely your memory isn’t that pitiful Nepgear.



“What does that have to do with giving me a penis Gehaburn!” she growled, fed up with the swords snide remarks.



It seems I must spell it out to you then. Before you would harvest the Goddesses power by stabbing me into them and reaping their lives. This method is somewhat similar where your will be penetrating them as well. However by joining your body with theirs you’ll form a connection with your power and theirs. Then by ravaging their bodies and minds with ecstasy you’ll draw on and absorb their power. Once the assault of pleasure causes them to submit completely you will have dominated their minds and hearts and claimed their power completely and it will be yours to command as you please. They will keep their lives and be unable to resist you further.



Nepgear’s mouth fell open in shock as she gaped, lost for words. What Gehaburn was suggesting was ludicrous, it was wrong! It was telling her to….to rape her friends! Gehaburn seemed to take Nepgear’s lack of response as an invitation to continue.



It’s ingenious is it not? Once you have claimed them and their powers they shall rally once more under your banner and their nation will follow as well! Once you have claimed the power of all of them not even the Deity of Sin will be able to stand before you! The world will be saved and your friends will have their lives, nations, and bodies kept safe under your care. I do believe I’ve outdone myself!



“You….you can’t be serious!” Nepgear stuttered as her outrage won over her embarrassment, “This is RAPE! It’s a crime! You’re asking me to betray my friends in the worst of ways! I won’t do it! Get out of my body at once!”



Would you rather kill them instead? The voice asked her in a calm and even tone which stopped her cold.



“Bu….but…..” she stammered feebly only to be cut off again as Gehaburn continued ruthlessly.



If that is your order Nepgear as my Master, I will comply of course. But you will be right back where you started. Your invasion of Lastation starts tomorrow. You know Noire and Uni will fight to the death to protect it from you. If you go out there with the original plan…. You. WILL. Kill them!



“I…...I…...” bitter tears filled her eyes again as she was torn. Deep down she knew it was true…. Knowing Noire and Uni as she did, they would fight to the bitter end to save Lastation. Even kill her and Neptune with the very sword they would plan on taking from her. Which they’d then turn on the others. She had to make a choice. Rape their bodies…. Or rape their lives and take them from them. Or submit to death herself.



How you treat them when you take them is up to you … the sword’s tone became gentle as it continued. A Master can be an oppressor and tyrant to their slaves, or a beloved owner and protector. You only want what’s best for them don’t you? The sword wheedled in a coaxing tone.



Two tears rolled down her cheeks as she made her choice. “I….. I understand…. I’ll do it. I’ll save them.” she said firmly as she marshaled her will.



Good girl. Cherish your wish to protect them. The feelings behind them are real. Now we had best get to work. Lastation would be the best target to go to first. The invasion can’t happen if Noire and Uni have already submitted. The sword urged but then paused when Nepgear didn’t budge. Come now my Master, where is that resolve you spoke of a moment ago? Nepgear fidgeted on the bed as she began to blush.



“Know...do…..” Nepgear mumbled almost inaudibly. The sound of a sigh echoed in her mind.



Speak up Nepgear. Show the confidence of one destined to rule! Nepgear’s blush deepened as she looked up at her reflection in the mirror.



“I don’t know how to do it…. I’ve never had a penis or sex before...” she whispered in embarrassment. Her blush deepened as the sound of Gehaburn’s laughter filled her mind.



I suppose we must walk before we can run. Very well. A quick lesson then. Allow me to assist.



Nepgear’s eyes widened as she softly yelped. A feeling of heat building in her body as a sense of arousal filled her, making her squirm. She could feel her new cock stiffening and growing rock hard from the feelings filling her. Her breathing deepened as her body began to grow hotter as Gehaburn’s voice spoke into her mind once more.



Now then… lift up your dress Nepgear. If you’re going to wield me, you need to learn how to use me. I was able to adjust you a bit to get you more in the mood.



Taking a deep breath but unable to resist the rising pleasant feelings in her, Nepgear lifted her dress and lowered her panties down to her knees as she watched her own reflection in the mirror her new cock standing proud and erect just above the folds of her pussy. She could feel a shameful yet delightful thrill

running through her as she stared at it, feeling it twitch in anticipation under her gaze.



While a normal penis would ejaculate semen when coupling with another. You will ejaculate your very essence itself, filled with your divine power. Filling the other CPUs and Candidates with it will begin the process of subverting and claiming their power once you batter down their mental defenses with a concentrated assault of pleasure. Now, take ahold of it and start stroking gently. Experience for yourself a glimpse of the pleasure it will give you.



Timidly she reached out and took hold of her cock with her fingers and gently began to stroke herself, gasping softly at the strange but pleasurable sensations the new part of her body was reporting to her.



Good Nepgear… keep going. Try varying the speed and intensity a bit.



Nepgear’s breathing deepened and grew faster as she stroked herself more strongly, the tip of her cock dribbling fluid which steadily began to make it slicker as the intensity of her rubbing increased as more and more pleasure filled her. Was this what it was like for boys? She wondered dazedly, having “experimented” with her own body before in the past, but the rush had felt never felt this good before! She thought as her mind grew hazy as she lost herself in the act of pleasuring herself. Slowly but surely her confidence grew as she began to figure out where and what intensities gave her the most pleasure.



Yes that’s it. It feels good doesn’t it? Gehaburn’s voice crooned in her mind as the pleasure continued to build as more minutes passed. The room filled with the wet shlicking sounds and the sounds of Nepgear’s soft panting.



This is what you will feel when you are buried inside the warm wet bodies of the Goddesses Nepgear…. Can you picture it?



She could, she could picture it clearly now. Uni’s soft warm body in her lap. The wet heat gripping her cock and squeezing with each of her thrusts. Her hands tightly gripping Uni’s hips as she pounded up into her. Uni’s arms around her neck and Uni’s cries of passion in her ears while Uni’s modest breasts rubbed up against hers. Uni’s legs locked around her waist.



You’re almost there Nepgear…. This is the important part. Make sure to remember it clearly now!



“Haa….haa….Uni….Uni!” Nepgear groaned, lost in the fantasy in her mind as she could feel something boiling up inside of her as the pleasure grew and grew, her hand working her shaft furiously as she could feel something in her about to burst. Finally the dam of her pleasure burst and Nepgear’s orgasm exploded as thick ropes of semen arced into the air, splattering upon her reflection as she tremble and shook from the intensity of her release before flopping back to the bed panting for breath, overwhelmed by the experience.



Very good Nepgear, a splendid release indeed. Quite an impressive amount for a first time.



Nepgear barely heard this through the haze of pleasure she was in, content to bask in the afterglow of her orgasm before Gehaburn chided her once more.



We’re not done yet Nepgear, you can’t be finished after one ejaculation. Some of the CPUs may require multiple rounds to break! Now, lets begin again!



Nepgear blushed at the thought of doing it again so soon, but couldn’t suppress the eager excitement at tasting that pleasure again as reached out to grasp her cock again. Only to jump in surprise at a sudden loud knocking at the door to her room.



“Nep. Jr! I heard a lot of noise in here earlier! Everything ok in there?” Neptune’s voice came through as Nepgear jerked upright in alarm. Her arousal forgotten as she couldn’t let Neptune see her in this condition! She got to her feet to rush to lock the door, only to forget her panties were around her knees as she promptly tripped and face planted to the floor with a startled cry and a loud thumping noise.



“Nepgear?” Neptune’s voice lost it’s cheerful tone and became concerned as her door handle started to turn as Neptune prepared to open the door.



“Ahh! Wait! Onee-chan! Don’t come in! I’m changin



“Cmon Nep. Jr. You say the silliest things! We’re sisters after all. Nothing to be ashamed of. You sure you’re ok there?” the door handle began to slowly turn again as Neptune seemed to have decided to come in after all! Nepgear frantically crawled forward on the floor trying to reach the door in time.



“No! Neptune stay out! I mean it!” she insisted trying to sound firm. Neptune paused again but suddenly chuckled. “Oh hoh! Are you doing something strange in there Nep jr.? Taking some time to pet the kitty?” she playfully teased.



Nepgear immediately gained a blush of almost atomic levels as she yelled, “ONEE-CHAN!!!” which only made Neptune laugh as she stopped trying to enter and let go of the door handle.



“I’m kidding! I’m kidding! Lighten up Nep jr. It was just a joke!” she chuckled before pausing a moment. “Nepgear…. I know it’s been a rough last couple of days and this has been very hard on you. If you need to talk come see me ok? Don’t hide in your room. I’m here whenever you need me.”



“Neptune...” Nepgear whispered, a lump in her throat at her sister’s kindness. “Thank you….”



“No problemo! Your Onee-chan will be with you and have your back throughout this story after all!” she said playfully before her tone turned serious again. “Don’t try to shoulder everything by yourself Nepgear. We’re in this together. Get some rest tonight. Tomorrow is a big day.” Neptune’s presence soon faded away as she left. Once Nepgear was sure she was gone, she heaved a sigh of relief.



“That was too close… I was sure I was going to be caught...” she said before she was cut off by the dinging sound of a trophy.



*BRONZE TROPHY ACQUIRED* Did you try working the shaft?

*BRONZE TROPHY ACQUIRED* Lock the damn door!



“WHAT KIND OF WEIRD TROPHIES ARE THESE!?!” Nepgear wailed as her recent activities were acknowledged and recorded. Nepgear could only hope that Histoire didn’t look at these records too closely.



Nepgear focus! We have to resolve the Lastation situation tonight and be back before Neptune notices we were gone. We have to get going while the night is still young!



Nepgear nodded as she shoved the memories of the embarrassing trophies to the back of her mind and tried to focus on the task at hand. Cleaning herself and her room up as she fixed her clothes and moved to her window. It was just after 7pm in the evening. Through normal methods it would take a couple of days to reach Lastation on foot…. Light gathered around her as she shifted to HDD form and became Purple Sister as she opened her window. If she flew she could make it to Lastation in just under 2 hours.



Do you have a plan for when we get there? Gehaburn asked as she took a deep breath before answering.



“Yes… I’ll target Uni first. If I call her from the N-gear when we arrive I should be able to persuade her to meet me alone. I’ll start with her…. I’ll worry about Noire afterwards.” she tried to calm the butterflies in her stomach as she took flight into the night sky, gaining altitude before accelerating to her top speed and rocketing toward Lastation. There was no turning back now, but she couldn’t help but look forward to the thought of holding Uni in her arms and claiming her at last. Her cock snugly hid by the underunit of her armored processor bikini the Lilac Mk2 began to stir at the thought of the pleasure to come.



“I will protect this world for everyone’s sake….” Nepgear muttered determinedly. “I’ll make sure that everyone I love will be able to live!” Nepgear raced across the night sky toward her first step to her destiny.

--End of Prologue--



Authors Note: Whew it’s done. This idea popped into my head and grew and grew until I knew I just had to write it. So there’s going to be some stuff going on here. We’re going to see dubcon, moral degeneration, corruption, hypnosis, mind control, and futa as well. If any of these things bother you, then this story is likely not going to be for you. Join Nepgear on her desperate mission to save the world and those she loves, and see the way she changes along the way and the price of her actions. The road to hell is paved with the best of intentions after all. Any feedback will be appreciated. It’s been awhile since I’ve written any erotica, so I may be a bit rusty. Hopefully my offering was enjoyable to you.

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