A visitor arrives.

"Hey! It's the Defense Fleet~!" San Francisco pointed out, a look of joy on her face as she spotted the numerous lights of their rescuers far ahead of them. The remaining ship girls all began to cheer as they knew their ordeal was about to be over. Enterprise and a few others had taken to staying on Formidable's deck.

"They're hailing us, Enty. How should we respond?" Vestal notified Enterprise, who nodded back in acknowledgement.

"Accept it and inform them of our current status....we're going to need a lot of rest and food for the rest of the way back. Also request for as many medical personnel as you can." Enterprise tasked Vestal, who began to radio back. Similar things appeared to be happening around with both Queen Elizabeth and Bismarck as well. "Let's go and inform Formidable to get ready." She turned to start walking to the bridge.

Just as things were going smoothly, a large explosion emanated from the bridge area of Formidable's ship form.

"What in the world?!?" Enterprise looked on in shock, as did many of the other ship girls, towards the source of the explosion.

From the smoke and flames billowing into the dark sky, a silhouette emerged, with two others appearing to be held by it. Just as unexpectedly, the silhouette tossed the other two straight at Enterprise and the others around her as it flew upwards. She dodged the incoming bogeys as the two landed hard on the surface. "Enemy shells?" She grit her teeth, but then her eyes widened in worry and shock. "Formidable???" She gasped out loudly as she saw Formidable, who appeared to be heavily injured and bleeding, barely clinging onto life.

"Z1!!!" Bismarck, who was near Enterprise, shouted out. She ran over to see her subordinate's mutilated body. "No...Damnit!!!" She cursed out angrily as an insane sounding cackle could be heard from above.

"YOU IDIOTS~! YOU REALLY THINK I'D LET YOU GO THIS EASILY~?!" The form of a siren appeared above them, her face sneering in utter contempt as she looked down at them like insects.

"...PURIFIER!!!!" Bismarck immediately fired upon the siren with all her 15-inch cannons. "YOU BASTARD!!!" Her own face exuding pure rage.

Purifier seemed to scoff and dodged the incoming shells with ease. "Pfft~ Come on, Biscuit~" She mocked Bismarck. "You know better than that~!" In return, the siren fired an energy beam right at the Iron Blood fleet's leader.

Suddenly, a barrier formed around the group of ship girls.

"Right on que...~" Purifier grinned as she saw the escorts of the ship come out to play.

"Everyone! Are you okay?!" South Dakota came rushing out, activating her skill just in time as the barrier took the brunt of the blast, just barely holding on as the attack finished. "We heard an explosion and came to help!"

"Perfect timing!" Enterprise addressed her. She then radioed to everyone in frequency. "ENEMY SIREN, DESIGNATION: PURIFIER, HAS BEEN SPOTTED, ALL SHIPS ARE TO ENGAGE AND NEUTRALIZE THE TARGET!" She quickly spawned her planes and launched them at Purifier.

"Weak~" Purifier spoke in a sing-song voice. She deftly dodged and outright punched the planes, destroying them, as they came. "Haha~ Is that all you-gah!?" She suddenly cried out as she got hit by multiple 15-inch shells. "Who the he-ACK!?" She was then struck by fighter planes firing their guns at her. She had to focus on evading as she spotted her new opponents.

"You paltry excuse of a Siren!" Queen Elizabeth shouted out in disgust as she continued to fire on the Siren, landing a few more hits before Purifier started to effectively dodge her attacks. "Come! Face my wrath!!"

"The amount of misery you've caused...you cannot be forgiven so easily..." Illustrious spoke quietly, but the underlying anger still showed.

"Tch, bothersome little queen... and her stacked carrier." Purifier clicked her tongue as she began taking more and more cannon fire and planes came at her, the rest of the **** Fleet's ship girls finally getting over their initial surprise as they went on the offensive. "Just a while longer." She returned fire, summoning her own rigging to shoot back, injuring quite a few ship girls in just the first volley as she continued to evade and attack at the same time.

***

"Hurry! Assist the **** Fleet's remnants!" The Commander ordered in a composed manner as multiple ship girls rushed towards the battlefield, **** to save their remaining comrades, especially after hearing of the losses. "Damnit!! A Siren coming out of nowhere?! And a high-ranking one at that!" He clenched his fist as he looked on at the mayhem happening just beyond his reach.

"Commander...They'll be fine." One of his own ship girls, Takao, smiled at him as she placed a comforting hand on his shoulder. "They'll hold off that one long enough for the others to assist."

"...Haah..." He just sighed after a while. "Yes, sorry... Just, the amount of losses we took, combined with what's happening now...it's too much." He sat down, a hand rubbing his eyes. "Did...Did I make a mistake?" He asked her, his voice quiet and a bit shaky.

"....I think you made a choice that you thought was best, given the information we had available..." Takao responded softly. "Commander, it's not your fault, as I heard before, "No Plan survives first contact with the enemy" from many of the Iron Blood girls... Despite that, it was a calculated risk. Either we send a fleet to stop a supposed growing threat of a Siren fleet amassing nearby and risk getting destroyed out there...or we wait...shore up our defenses, let them come to us...but risk letting the enemy get too powerful and breaking through...In a way...this might have been the best plan..." She went up behind him and hugged him. "Come now, Commander, now is not the time for tears...we have our friends and subordinates to save..."

"....Yes, you're right. My apologies, Takao..." He soon got back up, a fire in his eyes to continue the fight. "Remind me to treat you out to Yakiniku tonight~" He teased her with a smile.

"Fufu...~ I'll be looking forward to it~" Takao replied back with her own smile as the two now focused on the reports that came in.

***

"WOAH!? Hey! Ah! T-Too close! Okay, uh, oh no..." You were getting pushed back and relatively **** now that you had to engage so many ship girls, at least seven dozen by now, and more were streaming in. "Agh!" You yelped out in pain, getting hit by even more artillery fire. "U-Ugh...Okay...this is kinda bad...!" You dodged a kamikaze attack from one of Hornet's planes while simultaneously trying not to get shredded by all the Anti-Air guns that the Light Cruisers, San Diego and London, were dishing out. 'They're starting to coordinate very well...! As expected of them!' Despite that, you were actually quite proud of seeing ship girls in action, and attacking an actual enemy. Not doing friendly fire in a low-visibility mist. You still had to keep up the illusion of being an aggressor, but that was no longer needed. "Alright, time to bounce~!" You announced as you blasted away from the battlefield. "TCH!! YOU DUMMIES ACTUALLY THINK YOU CAN BEAT ME~?! WELL WHY DON'T YOU CATCH ME!?" You taunted them as you continued to rapidly move away from them and into the darkness.

"Come on! Let's get her!" One of the Sakura Empire's destroyers announced her eagerness.

"No!" Nagato, who had also come to help, quickly stamped out that notion. "If we chase her down, who knows what she's going to pull. We need to be patient! Not to mention we need to tend to the wounded!"

"U-Urk...s-sorry..." The destroyer apologized.

"It's fine, let's just get everyone back home..." Nagato smiled at her as they turned back, as did those who were considering chasing you down, to help their wounded comrades.

"Heh...~ Mission success...~" You grinned happily at how things went. You didn't kill anyone, thankfully, but you put up enough of a good performance, at least. "In the meantime...why don't I learn more about myself...~" You cruised along the surface of the water, wanting to find out exactly what the limits of your power were, as well as look through all of Purifier's memories.

***

A few months had passed since then. Many of those who had been injured had recovered or at least were close to a full recovery. Those who had received crippling or even permanent injuries, had to stay longer for more treatment and surgery. As for those who were lost, a large funeral was held on a nearby island, which had been abandoned some time ago when the Sirens first began to attack, only now recently retaken and secured. Now it had been turned into an International Memorial Site.

During that time.

"Hmmm...~ I wonder what would be a good thing to do today...~?" Formidable wondered, a smile on her face as she walked along the base grounds. "Everyone seems to be recovering well from the tragedy~ That's good." She observed other ship girls as they walked along, laughing and overall seeming to have a good time. "I'm glad they're lifting the restrictions and curfews...it's been so gloomy, but hey~ No siren attacks since then~ Hehe~" She soon reached her destination, her room. "I can't wait to relax today as well~" She then opened her door and saw an individual sitting on her bed. "Eh?"

You were just relaxing, playing on her laptop as she came in. "Hey~ I came by for a visit~" You waved at her as she closed the door quickly.

"Purifier!" She spoke in hushed tones as she approached you. "You should've at least texted me! Or contact me through a private channel!"

"Ehh...I did though. At least the texting part..." You shrugged as she checked her phone, her eye twitching after reading the message.

"Saying "Sitting on your bed now, lol." isn't telling me in advance!" She huffed as she sat next to you on the bed. "Anyways, why are you here? The Siren attacks getting too intense?"

"Yeah, they're starting to try a little harder nowadays." You explained. "I could deal with a few dozen lower-class Sirens all at once before...but they're getting smarter with how they attack...I got ambushed by two a couple days back and despite being low-class Sirens, they seriously did some serious damage to me...I'm just glad none of the higher-classes have decided to go after me yet..." You sighed and pouted. "So I came out here to have some fun for awhile."

"I see..." She petted you on the head, which you nuzzled her hand. "Yeah, just tell me earlier next time~ How'd you get in here anyways? I thought the base's defense system was upgraded to detect Sirens, and especially high-class ones like you." She eyed you.

"Hm? Oh, I just hacked the system. It took a while, but I managed to make it so I can just pass through whenever I want. And avoiding the warships and ship girls around is actually incredibly easy too, haha~" You answered her question coolly. "How have things been here?"

"Pretty good, actually, everyone seems to be coming to terms with the losses of back then... There are, of course, exceptions... But overall, life is starting to recover here." Formidable spoke hopefully with a smile. "Thanks for making it happen~ Whether it's intentional or not, the Sirens have been focused elsewhere, most likely searching for you, to attack us or our allies."

"That's great to hear~ hehe~" You giggled softly as you sat up, placing the laptop away, then got behind Formidable before wrapping your arms around her and giving her a little nibble on the neck. "Hey~ You know what would be fun~?" You smirked at her, your hands slipping in the opening on the top of her dress and groping her tits.

"Mnh~ W-What is it~?" Formidable's shaky voice asked.

"Why don't we try making a few more...friends~? Can't you do what I can~?" You asked her curiously.

"Haa~ N-Nope~ I'm just...ngh~ I-I may be "You" to an extent...~ Mnh~ But I'm not really you either~ Just like...hya~ I'm not completely Formidable either~ I have her memories...~Hngh...~ But not her personality~ Thankfully, everyone's dismissing it as a form of coping and stress for now~" Formidable gasped softly as you pinched her nipples.

"Ehehe~ I see~" You licked your lips as you pulled down the front of her dress, exposing her stiffened nipples, your hands only continuing to play with them more and more roughly. "I love it when you don't wear any undergarments~"

"T-Thank you~!" Formidable, panted more as she got aroused. "N-Now then~" She looked towards you, her eyes hungry with lust and curiosity. "W-Who were you thinking about...changing...to fit...our little circle~?"

"Hmm~? Well...I have a few options actually...~" You pulled one of her nipples as your other hand slid down, lifting up her skirt, revealing her soaking her pussy. "No underwear too? Naughty~" Your hand quickly went in and began to rub her soaking wet cunt through her tights. "Just a little tear here~" You ripped a hole through the front part of her tights and began to rub her pussy directly.

"H-Hnghh~ A-Ahh~" Formidable's sweet moans began to leak out.

"I have some options to go for~ I've been watching to see who I wanted the most right now~" You licked her cheek as you plunged two fingers inside her, feeling her insides tighten up. "First...we have Enterprise~ A strong, dependable leader~ But that body of hers is something that needs to be exploited~ She's not using it at all~" You bit into her neck and sucked on it, intending to leave a hickey.

"Fuah~ Ahha~ Y-Yes~ t-That could work-ghh~" Formidable's eyes rolled up as she squirted, your fingers pressing on her g-spot to make it happen.

"Mhmm~ Then we have Dido~ Maybe it's time to fully make her fall to corrupted pleasures~ Her mind may have forgotten, but her body hasn't...we can surely...make her remember how much she loved being a slut~" You whispered into Formidable's ear, feeling her shiver under your breath.

"H-Hyaa...~ I-I see~ H-How devious~ Nghh~" She moaned out as she arced her back a bit.

"I've also taken quite a liking in both San Francisco and Bremerton~ Though if we choose them... I want to play around with a few...kinks...I've wanted to try out~" You began to finger Formidable relentlessly, adding another finger in the process.

"Hyuuuh~ Haah~ Nghh~ Y-Yeshh~ T-Their hot bodies~ Ghhnn~ W-Would d-def..ddefinitely do well~ Ghh~ W-With whatever you want~" She cried out in pleasure.

"Exactly~" You grinned at her. "Finally, and I think this one will be incredibly fun~ The Commander and Takao of the Sakura Empire have gotten VERY close during this time~ Don't you think~?"

"A-Ahh~ O-Oooh....~ I-I have noticed mnhh~ how much they spend time together~" Formidable groaned as she squirted out.

"Mhmm~ They're so happy together~ So happy, in fact, that the few times I wander the base, they're usually going at it~" You smiled at her. "Now...~ here's the thing...~ While I'm sure the Commander is VERY good at what he does...~ I think Miss Takao is missing out...I believe she could use...more than just HIS dick...HIS desire, HIS seed~ You see where I'm going with this~?"

"Ohooh~ A-Ahh~ M-Maybe you're more nghh~ S-Siren than you thought~ Wh-what you're ghhh~ i-implying is...haahh~ so devilishly hot~" Formidable smiled like a pervert at what you're suggesting as she squirmed, her hips rocking needily.

"Of course, it's not going to be immediate if we choose her~" You mused. "She has a strong will, a good head on her shoulders, and her morals are quite solid as well...~ We'll corrupt her mind and body slowly, put a few little ideas in her head, influence and watch them grow...and finally... and make her fall in the least graceful way we can~" The thought of completely corrupting these individuals truly aroused you as you whispered in Formidable's ear. "Cum~"

"Hyaaaha~" Formidable's eyes rolled up as her body convulsed, squirting and tightening around your fingers as she came violently. "Fueehee~ Nghhh~~" She moaned as you captured her lips in a deep, messy kiss, your tongues twirling and playing with each other as she rode out her orgasm.

"Haa..~" Afterwards, you both laid down in bed cuddling each other. "So...Who should we go for first..~?" Formidable asked you, a slutty look in her eyes.