Horada's Safehouse
The next day early morning in Shinjuku, standing guard next to the tied up Mairu and Kaztano, right now they are the female Cyborg, Gull, outside in front Aya Tatsugami is keeping watch out for any Intruders of their main base of operations in Shinjuku City, Yotsuya, Morishita-Style Warehouse turn safehouse from the entrance.
Gull notices Mairu trying to break out of her rope in the chair and seeing Mairu successfully breaking the ropes just little, loosening them one by one, Gull went up in front of Mairu, Gull's her eyes then glows once more, more bright she seems pleased at Mairu being supposedly helpless.
"Orihara Brat!"
"I want to say my final words before my band of acquaintances like Horada, Nile and Aya, we will probably dispose of you for whatever reason" Gull started to take pleasure in Mairu trying to escape.
Gull drops her cloak that she was wearing that was hiding her full body cybernetic-enhancements and mechanical weaponized implants converted in her all over her own body, finally removing the Red Oni Mask that was concealing Tsukiyama's true face as a full complete cyborg.
"I got this fully body advanced conversion of heavy cybernetic implants covered by a fused metal between Tungsten, Chromium and Titanium armor 'shell' to make myself stronger, no wits needed by some powerful mega-conglomerate I heard about before"
"I had to go into hiding for while to get implants and metal all of the whole of Body, except for the organs I need to function with but they needed some adjustments too"
"You made me lose my only friends I had and got me permanently expelled me from Raira Academy, because of the actions of your older sister, yourself and that dumbpunk Aoba, your ex-boyfriend'' Gull arrogantly gloated, now talking in her echoey raspy-cyborg voice after taking the mask and hood-cloak off.
After she removed the cloak and mask that previously covered the cyborg body in front of Mairu, Gull appeared to be drastically different then she was in her cloaked and concealed form.
Tsukiyama's new full bulky borg body-like appearance without the cloak still looks close to be a humanoid, purple-ish, black tubes and wires on her back to the back of her head, looking monstrosity heavy by looking upon her enhancements and cybernetics, no hair or anything including skin and bones, the colors on her cyborg body is shiny gray with white markings to lines on both hands, top part of the head, and a tall stature.
As a fully body borg with a special heavily modified frame and no skin left, her new form resembles more of a demonic-like humanoid tank then a actual "human" with a towering stature and big broad shoulders with bright piercing light-purple eyes optical mods seeing in infrared, x-ray vision, sonar and basically every military grade implant with the only remaining flesh in her appearance is forehead and eyes and the skin surrounding it with lower no jaw and now her mouth
Only a speech unit for a jaw, her hands to the arms are just full arm-gauntlets up to her very broad shoulders that were concealed before with an retractable missile launcher on her right shoulder, where the missiles are contained pointing directly at Mairu's face.
"Hahahahaha" Mairu laughed. "That's why you are specifically after and want revenge against me!"
"You want to get payback against me so damn badly, that you would literally sacrifice all of your humanity to become a full body cyborg!"
"Oh please, you would been kicked out from Raira, regardless of me, Aoba and Kururi's intervention" Mairu laughed and mocked Gull.
Gull had enough with Mairu mocking Gull on purpose, she grabbed and picked up, Mairu by the neck, using both of her own metal-borg hands to very slowly choking Mairu, as Gull is intending Mairu to die and suffer for this time but Gull, accidentally removing Mairu from the chair and rope constraints with Gull oblivious to unintentionally feeding Mairu.
Aya swiftly contacted Gull to calm her down, through their communications pieces in their ears
"Ah, Tsukiyama….well…I mean….Gull"
"Stop toying with the hostage that's our bargaining chip especially, the one named Mairu Orihara"
"You better take your freaky cybernetic metal hands off of her, it is wasteful, even for you…Gull" Aya ordered.
Gull instantly turns off the communications device that was implanted in the side of Tsukiyama's head immediately, ignoring Aya trying to calm the situation. Gull is still furiously strangling Mairu very slowly without consideration of Horada's, Nile's and Aya's somewhat carefully constructed plan.
"You can't tell me what to do if you don't have any authority over me, dumbass tabloid reporter" Gull exclaimed.
Both of Mairu legs and arms began to squirm erratically trying to free herself from Gull's grasp, putting one of her hands on Tsukiyama's very disfigured-modified face, attempting to escape.
Gull's grab started to tighten on Mairu's throat with more inhuman strength.
"St…stop…it…..Akuno," Mairu begged and pleads while being slowly choked out by Gull.
Gull's other arm, transformed into a heat-blade, readying and preparing to stab Mairu in the guts.
"I've waited for years and finally…finally I get my overdue payback against one of you damned Orihara's for ruining my entire life!" Gull exclaimed, almost about to run through Mairu with the blade and literal seconds away from getting her revenge.
Gull with one of her arms, extremely glowing and melting red heated-blade, Gull thrusting her blade way to Mairu, making it swift but the moment is interrupted by a bunch of water balloon-looking things are thrown from behind Gull, out of nowhere a few water balloons with timers on them sticks to Gull sticking to her heat-blade appendage and her face, one more specifically the sharp tip part of the heat-blade, Gull confused stopped in her tracks from trying to off Mairu for real then.
BANG. WHUMP. BANG. BANG.
They instantly explode with a surprising amount of water dropping all over Gull cyborg body, starting to short circuiting her systems and implants with the water.
"AHHHHHH" Gull shrieked in pain.
Both of Gull's purple Irises is flashing on-and-off in wrapping succession while her everything that's remotely fully machining, advanced cybernetic implants in her own body short-circuiting due to the amount of liquids, making Gull feeling endless amount of agony, due to what are clearly random water balloons that explode that were thrown at her.
Gull in the moment, dropped Mairu on the ground.
Mairu couged profusely after she was choked out and almost died, as Gull is mostly being handicapped and being incapacitated by water inside of her Cyborg body.
Gull fell on both of her hands and knees, wanting it to stop.
"Make it….Make it….Stop!" Gull yelled begging for mercy and wanted the pain to stop.
The ex-student of Raira Academy and school bully turned psychopathic corporate slave Cyborg collapsed onto the floor of the wherehouse.
Mairu stood up on her feet from the ground, looking on as she witnessing Gull begging for the pain to stop over again.
The Warehouse's large doors fully open, the daytime lights from the Warehouse make two familiar figures to her in shadow as they get closer and closer, the shadows slowly go away as they walk to Mairu.
"Mairui!" Both Kuon and Aoba yelled as they ran to see Mairu.
Mairu brushed off all of the dust from the safehouse off of her outfit, Kuon catched up first and he was about to put one of his hands on her shoulder.
"Don't touch me!" Mairu exclaimed, angrily swiping one of his hands away.
After that Mairu looked on genuinely and was completely shocked to see Aoba and Kuon are completely okay that they were not kidnapped as Hostages by Horada considering what's been happening lately.
"Anyway, we were late to save you but when I left you to go see Aoba with what's left of the Blue Squares, they weren't there at all.
"It was apparently a trap I figured out, probably some new color gang in town I been hearing on the news, so Aoba and I fought them off just the low-level goons just enough to escape very narrowly."
"We figured you were taken somewhere in Shinjuku by that same new color gang leader, and took out the one guard woman guarding the Warehouse.
"When Aoba and I didn't find you in your Apartment and just came here since this place is near Izaya's abandoned Apartment-Office Building, we also managed to knock out that Tokyo Disaster reporter, " Kuon explained.
They had came and saved her by pure chance, but Mairu was both a little grateful and finally found her and someone rescued her from being killed by the Psychopathic Cyborg Gull and also at same time, pissed off at them finding out about what happened to her and figuring out their new enemy Horada sooner.
"I'll explain everything on the way to find the Bastard that was captured and use me as a bargaining chip." Mairu remarked.
Mairu, Kuon and Aoba of them ran out of the Shinjuku safehouse to find Horada and the rest of his new color gang, but unknowingly leaving Kaztano behind in the Warehouse.
Sonohara Hall
Same time a few minutes later after Akabayashi and Masaomi left the antique hall store, Anri was leaning her back against the front-counter with arms completely crossed in a very stern manner at Kasane. Anri's was staring from a distance directly looking from behind Kasane's back with an serious look on Anri, meters away Kasane in the corner of the store is very, quietly expecting from top to bottom, the extremely dusty, surprisingly still very shiny sharp and empty full suit of half-european, majority japanese made, Samurai Armor named: Shinku, out of Kasane's own pure almost weird curiosity for the supernatural and cursed objects.
"Ms. Sonohara, where did you get this intriguing looking black and red suit of Samurai Armor from?" Kasane asked bluntly.
Anri sighed heavily and was still completely silent, wanting Kasane to actually discuss something else.
"6 years ago, It was found and left outside in front of the store, when I came and checked into work one day," Anri said.
"Ms. Kujruagi, now answer mine. Why are you here exactly?" Anri asked.
Kasane immediately stopped looking at the mysterious creepy-looking black and red Samurai Armor, she walked to Anri with both of her hands behind her back, giving a vibes of almost intimidating and seductive, she went to the side of Anri's head to whisper.
"I just wanted to see you fall or you already started slowly falling completely to the darkness of your Saika?" Kasane whispered into Anri's ear with a smirk.
Pretty shocked that Kasane would whisper this directly to her despite not visiting much in Sonohara Hall.
Anri is so taken back by this that she pushes back Kasane a few feet.
"I will repeat to you, what I said to Saika itself"
"I'm not like you or anyone….I've changed and I was never a parasite"
"I don't want to become like a monster by anyone or anything." Anri exclaimed.
Kasane, after being pushed by Anri, puts on an unsettling smile.
"Very well then, Ms. Sonohara"
"I'm going to leave you be, have a nice day" Kasane replied.
Kasane went through the door of the antique shop, right as she opened the door very slightly.
As the mysterious second most powerful information broker in Ikebukuro' Kasane puts one of her hands on her own chin contemplating one last question about Saika and Anri being completely and utterly silent while giving Anri a intimidating glare at her.
But chooses to keep it to herself for now and leaves Sonohara Hall with Anri so alone with her once more, and Anri's mind begins to race inhumanly fast with thoughts about everyone one supposed friends by Saika itself.
"I-...I'm not a"
"I'm not a parasite….I'm not a parasite….I'm not a parasite" Anri starts to panic internally in her own mind, both of her eyes turning a light crimson red, due to Saika's influence, beginning to repeat to herself. "I'm not a fucking parasite….I'm not a fucking parasite….I'm not a fucking parasite…"
A Few Hours Later
Later in the day, Anri is outside in front of the Hall, closing up shop for today and heading to her newly bought luxury apartment through the amount of money she's gotten with her family business, she's now calm after fighting back control of Saika again.
Anri looked upon Sonohara Hall sign of the store with nostalgia and had a little smile on her face, after Mairu and Mikado came over to visit her at the shop she's been missing being together with them as friends with everyone in the Ikebukuro.
"Over the years, this place has brought me and made so many great memories, including with Mikado, Mairu, Kururi, Aoba, Kuon, Walker and especially Erika," She reminisced.
Author Note: The next chapter will probably be half-present day and the other half entirely a flashback just wanted to put that out there, also sorry if some of the characters are out of character for the most part, Baccano characters will appear in this dark crossover fic like the immortal Nile and my apologies yet again for the long wait for yet another chapter to those who are genuinely interested or casually reading this little fanfiction project of mine.
You know that extremely insignificant side-character named 'Tsukiyama' from the beginning of Durarara X2 Shou that briefly appeared in episode 2?
Mairu, Kururi, and Aoba's Bully, the one who wrote 'bad words' on Mairu and Kururi desks in Raira Academy, yeah her, I give her a last name, surname of "Akuno" literally meaning "Evil" in Japanese, at least one of the translations of that word does.
As for Tsukiyama now being a Adam Smasher and Rictus (Young Justice Version) full body converted cyborg, renamed her with a new name: 'Gull' that will probably be explain the eventually either later down the line in this fanfiction in this one story arc or maybe in this story arc but plans may change okay so I have no guarantee that will happen.