"Unchained..." Kisuke muttered, "Mind explaining that for a bit?"
Since it's relatively common knowledge who sees Hell for what it is, Chika has no qualms in explaining it to Kisuke, "Whenever one comes to Hell naturally, they'll be chained down by the Chains of Hell and it'll be branded all over their body. Hence we call them the 'Chained'."
"Those who wandered in here or were let through without Hell's 'approval' were called the 'Unchained'. That's to say, there are other ways for these 'Unchained' to come into being." Chika immediately stopped there, prompting Kisuke to think for himself, 'If he can't see through it with just this, then I'm giving him more credit than he deserves.'
Kisuke saw through his intentions and leaned back as the room became quiet with only the bustle of the crowd outside and fresh air entering the window. Kisuke didn't know what he's trying to achieve but he can tell that there's a certain expectation that he needs to achieve before he could proceed with them. Although it's not an absolute requirement for him to cooperate with them, it'd be a lot easier for him.
'The key points are the 'Chained' and 'Unchained' and how the latter could be attained through more than one means while the former could only be possible if one is a 'natural'.'
Reaching this train of thought, Kisuke's focus immediately focused on 'natural' and a certain possibility entered his mind and made his eyebrows narrow. But before he could make any conclusions, he asked, "What is a 'Chained'?"
"A punishment that drowns you in your own 'sin'. Others could also see it as a reward that recognizes your lifetime's work." Furoufushi answered him, "One thing is for sure, though. It makes you think that you're 'sinless' and act upon it."
After that, Kisuke became partially sure of something and asked to confirm it, "So when you said natural, does that include the fact that those with Captain-level Reiatsu don't have anywhere to go aside from Hell?"
Chika smiled, "Correct. It's all part of the natural order. And as you might have already guessed, another way to become an 'Unchained' is to free yourself from the Chains of Hell."
And now that that's out of the way, and Chika could trust his cognitive abilities, or at least, his imaginative skills, he continued, "After enduring what seems to be an eternity of mind manipulation that boosts one's madness and psychosis, one would have a chance to shed away the Chains of Hell and gain peace of mind. At that point, your punishment is done and you will be able to lead a new life here in Hell. However, that also means losing access to the connection with Hell itself. Even if we find a door that'll lead us to the Human World, we won't be able to interact with it in any meaningful way, much less go through it."
Kisuke finally understood why Szayelaporro could cross the door of Hell and even managed to somehow use its 'eyes', 'Using these Chains of Hell, they acquired some authority over Hell... This is definitely a reward for a guy like him... And a very dangerous thing to have.'
Kisuke is afraid that Szayelaporro has any other authority other than opening doors, '...Controlling other 'Chained'. It's going to be annoying.'
Kisuke knew that Szayelaporro is someone who uses his head so he knew that if there was any lacking part of his authority, he'll do anything to expand it, "Looks like I will need to take the initiative to at least make him busy with other things."
"What are you talking about?" Furoufushi suddenly asked.
Kisuke took a deep breath and sighed, "I recalled you referred to me as an Arrancar earlier so I'll assume that you've already encountered them a few times?"
"Not just a few encounters, those bastards suddenly just appeared a decade ago and started eating Souls. We know that they're Hollows that came to Hell, but we don't know anything else about them aside from what they call themselves and some of the techniques that they use." Furoufushi clicked her tongue while explaining. There's a very obvious hostility coming from her.
"We also know that they are distinctively different because they carry around Zanpakuto as if they're Shinigamis." Chika added and although he appears a lot calmer than the former, there was a boiling killing intent behind his eyes, "But what about them?"
"To explain it simply, these Arrancars are the result of a rogue Shinigami's experiment that allowed a Hollow to tear off their mask and gain Shinigami-like powers. They became a big problem 15 years ago but most of them were killed, with the remaining Arrancars managing Hueco Mundo and having a non-aggression pact with Gotei 13 as long as they don't invade each other's space."
Chika and Furoufushi's eyes widened and the latter commented, "That's surprising... The Gotei 13 getting along with Hollows?"
Kisuke chuckled before continuing, "It all paid off when they became a great asset to the Great War, 3 years later."
'3 years later... So it was 12 years ago?' Chika and Furoufushi vividly remembered how the whole of Hell shook 12 years ago and it was also a few years after that they noticed that the boundary between the Human World and Hell became dangerously weak.
However, all of this will momentarily fly out of their heads when they heard Kisuke's next words, "The Great War between Soul Society and Quincies that cost countless lives, including some people you know, namely, Genryuusai Shigekuni Yamamoto, Yachiru Unohana and Sasakibe Choujirou Tadaoki."
"!? Quincies!? Those pests have returned!? And old man Yama was taken out!? Including Yachiru and Sasakibe!?" Furoufushi stood up from her seat and slammed the table in front of them into pieces.
"Calm down. I wouldn't be here if Soul Society didn't survive. It might be just recent news to you but it's already more than a decade ago. And in the Great War, Yhwach was also killed."
Furoufushi knew that her anger would do nothing and forcefully calmed herself down before sitting back down, "Wait... More than a decade ago, so does that mean the Soul Funeral Festival was performed?"
Kisuke nodded, "For all of them, just recently, yes."
"Chika!" Furoufushi suddenly shouted, "The top priority is searching for them."
Chika, who had been quiet also suddenly stood and walked up to the window, "I'll take care of it."
As soon as he said those words, he disappeared with a Flash Step.
Kisuke saw Furoufushi cross her arms and started tapping her fingers, showing her frustration with the situation. Nevertheless, Kisuke still hasn't acquired enough trust just to ask her what's going on but he knows that it has something to do with being 'Chained'.
Kisuke also stood up and said, "It seems that you're going to be busy soon so I'll leave you alone for now."
"What? What about our agreement?"
"We can continue our talk about it at a later time. For now, I'll bring documents about what happened this past century the next time I come back here so that you'll have an idea of what's going on. Don't worry about its authenticity since it'll directly come from the current Captain Commander and old man Yama's student. Once you find him, you'll be able to confirm it from him."
It's not really that important because they could just ask Yamamoto and Yachiru what happened when they find them and they'll be able to find them as long as they are really sent to Hell. However, Furoufushi has a feeling that she has to continue this relationship with him and nodded, "Alright. I'm looking forward to it. But how are you going to return?"
Kisuke grinned and a Magic Circle appeared beneath his feet, "I have my ways."
Furoufushi's unexpected guest disappeared after lighting up the whole room with strange symbols that emitted Hell's Grace. And as soon as things calmed down, a piece of paper came falling down in front of her.
After catching it, she read, "My offer of bringing you into the Human World still stands. And I advise you not to mention my real name to anyone or else you can forget everything we've discussed for today. -Belial."
Using a simple Kidou, Furoufushi burned the note and left the room, intending to send a message to Chika who just left to keep everything about Belial a secret.