SailorStar9: After getting the prologue out, this is Chapter 1 of this fic. For everyone who put this fic on your favorited and followed lists and/or story alerts, thank you, but remember everyone, a lot of authors (myself included) sustain on readers' reviews.

Pairings: Ishida/Hasu, minor pairing Hitsugaya/Karin

Disclaimers: I own nothing, except for the plot bunny. Heck, even the pairings aren't mine.

Chapter 1: Civil War in Hueco Mundo!

"My darling Karin-chan is home!" Kurosaki Isshin sang from the clinic's office when he heard the clinic door slide open. His next sentence trailed off when he caught sight of the odd trio outside the door, his eyes then focused on the blackening bruise on Karin's knee. "My darling Karin-chan is hurt!" he broke the awkward silence a few seconds later. "Hitsugaya-kun, please put her here." he gestured to the empty patient's cot.

"Hai." Hitsugaya deposited Karin on the empty bed.

"Captain Shiba, is that you?" Matsumoto squealed, tackling the older Shinigami.

"Captain?" Karin echoed slowly, leveling a glare at her father. "Shiba? Really?"

"Ah, Karin-chan..." Isshin looked over his former subordinate's shoulder. "I can explain..."

Karin cast a look at the mildly bemused Hitsugaya, "Who wants to use him as Kido target practice?"

"Yoruichi-san's deviousness has certainly rubbed off on you." Hitsugaya rolled his eyes.

The next day...

Karin handled Hitsugaya a plastic bottle of mineral water after their sparring session which the white-haired Captain took gratefully and gulped down the life-saving liquid by the mouthful.

"Tell me about Goat-Chin." Karin insisted to the boy beside her.

Settling down on the grass, Hitsugaya let out a wistful smile and went down memory lane.

On the roof of Urahara Shop...

"What?" Ririn gasped, Kurōdo and Noba's teasing were cut off by the sudden appeared of a wave of Reiatsu and a Garganta appeared in the sky, announcing Patros, Menis and Aldegor's arrival.

"Those lame Shinigami have already sniffed us out." Menis snorted, already sensing the Shinigami group were centering on their location.

"This sucks." Aldegor complained. "They're all weak was hell. What should we do, Patros?"

"I must ask you gentlemen to deal with the Shinigami." Patros requested. "They don't seem very strong, but I don't want them interfering with my research."

"Does someone in this town really know how to use the Hōgyoku?" Aldegor was unconvinced.

"That's why we're here." Patros replied. "Even if we possess it, it's just a toy ball if we don't know how to use it. Los Noches will try to track us down. We must win before them. Try to be as quick as you can." that said, the three Arrancar went their own separate ways.

"Captain." Matsumoto caught up with her Captain.

"Be careful." Hitsugaya warned. "They're close."

"Captain Hitsugaya." Ikkaku called out, arriving at the abandoned construction site with Yumichika.

"They're coming." the white-haired Captain cautioned.

"Gusty little punks." Menis taunted, appearing with Aldegor in tow. "Well, whatever. Stab, Erizo!" he wasted no time in activating his Resurrección. "The difference in our strength should be obvious."

"You're not even worth fighting seriously." Aldegor concurred. "Unfortunately, we don't have much time. You'll die here. Get them, Jabalí!" following Menis' example, he activated his Resurrección.

"Is that your Zanpakutō release?" Hitsugaya asked, the four Shinigami took the fight to the air.

"That's right." Menis replied. "This is my true form."

"Sōten ni zase, Hyōrinmaru!" Hitsugaya dodged the extended tentacle and released his Shikai.

"This is my released Zanpakutō." Aldegor bragged, facing off against Ikkaku and Yumichika.

"Grow, Hōzukimaru!" Ikkaku readied to fight his opponent.

Using Sonido, Patros appeared in front of Urahara Shop.

"Stay back!" Jinta demanded, opening the doors armed with his metal bat and Ururu had her rocket launched heaved over her shoulder. "Not one more step."

"We'll make you sorry if you don't stop now." Ririn threatened.

"I heard that a person here knows how to use the Hōgyoku." Patros voiced. "I would like to meet him."

"He isn't here." Renji cut in.

"Another one?" Patros gave the Shinigami a side look. "You are?"

"Lieutenant of the 6th Squad of the Gotei 13, Abarai Renji." Renji answered.

"Where is the one who knows how to use the Hōgyoku?" Patros questioned again.

"I said that he's out." Renji repeated.

"Then, I have no choice but to wait for his return." Patros noted.

"I'm afraid that isn't happening." Renji prepared for battle. "I'm watching this place while he's gone."

"Simply waiting will be boring." Patros remarked. "Very well. Come on."

"Howl, Zabimaru!" Renji activated his Shikai.

"What are you doing, freeloader?" Jinta complained, Renji's extended blade missed Patros and hit on Hasu's energy barrier instead.

"Damn it!" Renji cursed and took off after Patros.

"Ururu, get inside." Jinta ushered his partner in, both kids was rendered immobile by Patros' immense Reiatsu.

"It doesn't matter where you hide." Patros stated. "What are you going to do? That store will crumble if we stay and fight here."

"I doubt that." Renji corrected. "That shop's owner is surprisingly cunning. Not to mention, the one shielding that shop is our Commander-in-Chief. It won't be that easy. Besides, I can just win before that happens."

"Then, would you like to try your hand?" Patros challenged. "So, you can fight a bit." he punched off Zabimaru. "I hadn't planned on drawing my sword, but I shall let you see it." resheathing his blade after a quick draw, he fired off an arc-shaped energy blast at Renji and sending the redhead crashing to the ground. "How weak. There are twenty different levels to my draw. That was my weakest one, Level One. It was just a little greeting. You can't even stand up to me drawing my sword. Let's try it again." he released another energy blast at his downed opponent.

"You won't win that easily." Ririn piped in with other two Mod Souls in tow, Noba having saved Renji using his portal.

"It seems that you don't get it." Patros renewed his attack, having taken out the three Mod Souls with relative ease. "Then, taste my Level Two." he fired off his charged up attack to the ground at Renji. "But that's just the beginning."

Omake: Kon-sama's Ultimate Shinigami Illustrated Guide

Hiyori: (Outside of the Vizards' hideout with Ichigo and Hirako) Hurry up. It's our turn to do shopping today.

Ichigo: Why so many of us?

(A store in the back explodes outwards and a drunk Hollow emerges)

Ichigo: A Hollow? Okay, let's go.

Hirako: Wait, Ichigo. There's a bunch of Shinigami friends of yours around here, right? Take this with ya, so they don't find out you're here. (Hands Ichigo a cat mask)

Ichigo: Right, thank you. (Runs off after the Hollow.) Wait, what the hell? (Tosses the mask to the ground)

Hiyori: His reactions get funnier every time.

SailorStar9: In the next chapter, Patros' subordinates are defeated, and Renji uses his Bankai, forcing Patros to release his Zanpakutō. Patros begins to overwhelm Renji and reveals the secret of his attacks to Ririn. Ririn, Kurōdo and Noba prevent Patros from using his attacks, and Renji defeats him. Now that's done, read and review.