Aizen reappeared in the Human World, more specifically, within the Karakura Town. When he looked around, he was surprised that the whole town was relatively intact, save for the numerous corpses of insects littering everywhere.
There were almost no signs of live insects and the holes in space had started healing themselves. Even then, the town was still filled with noise and activities with most of the Humans cleaning up the mess that the attack had left, 'With the advent of Magic, the Human race will advance and jump several generations into the future within a few years. These insects may have caused them horrors unimaginable, but they are also treasure troves of knowledge.'
Human culture and probably borders will undergo a massive change after this, but Aizen was not too interested in it.
But because he didn't attempt to hide his Reiatsu, Aizen soon felt multiple strong presences rushing to his side.
A few seconds later, various people using their movement techniques appeared and surrounded Aizen.
The soldiers who were working to clean and transport the corpses stopped what they were doing and turned their attention to their direction.
Ichigo, in his half-Hollowfied form and Bankai released, turned to them and raised his voice, "Stop what you're doing. Leave now and tell the others to evacuate from here! This place is dangerous!"
The JSDF knows not to mess with them, not after seeing what they are capable of. So without any hesitation, one of them spoke into a radio and soon they started leaving, discarding everything aside from the bare minimums.
Now that the area has become lifeless and deserted, Ichigo spoke while pointing his blade at Aizen, "When did you come out of your seal? And what are you doing here?"
Aizen didn't answer immediately and looked around. Aside from Ichigo, Chad, Uryu, the Fullbringer group, and the Quincy group are surrounding him while pointing their weapons in his direction and looking at him nervously, "If you asked me a few years ago if Shinigami, Fullbringers, and Quincies were going to work together, I could have never believed it."
With sharp eyes, Uryu urged an answer from him, "You're not here to take advantage of the situation, aren't you?"
Aizen smirked and said, "That certainly isn't my intention, but if you want things to heat up again, I don't really mind granting your wish." In an instant, Aizen's thick purple Reiatsu manifested and pressured everyone. Aside from Ichigo, everyone else felt like someone hit them on the back of their heads and they almost buckled down and lost consciousness.
Everyone gritted their teeth and was about to unleash a retaliatory attack when they suddenly heard a voice of question not far from them, "Uncle Aizen? What are you doing here? I thought you were with Sera-neechan, Ophis-chan, and Lilith-chan."
'...Uncle...Aizen...?' Everyone collectively thought and slowly turned their heads to the source of the voice and saw Claire, with her wings out, slowly flying down.
However, what's even weirder was Aizen's reaction. The pressure he's releasing immediately disappeared and he acknowledged Claire, "Claire. Those two are hopeless and I doubt they'll learn it in such a short time. And I'm here to discuss something with you."
Even Aizen himself never thought that he'd allow anyone to call him 'Uncle' and here he is, accepting it. The moment Claire called out to him, his mind returned to the earlier conversation he had with Serafall, 'Life, huh? Should I experience it for myself too? Although I don't think it would be interesting enough.'
"Is that so?" Claire landed and walked forward as she retracted her wings. She looked around and saw the tense situation and she could understand where they were coming from since she knew their history. Nevertheless, she also doesn't want to needlessly rile them up by telling them to stop, 'Alright. Let's ignore them for now.'
"I have to compile my report so I'm about to head to the temporary office. Can we perhaps discuss it there?"
"No." Aizen started moving and walked past the group of Quincies standing between him and Claire, "This is much more important so leave the menial task to others. I need you to come with me to the Soul Society."
"Hmmm..." Claire thought about it for a moment and after a few seconds, she came to a conclusion that there was no way for her to refuse him and decided to do what he wanted, 'Something important? Sera-neechan wouldn't have allowed him to leave if he was about to endanger me and we're going to the Soul Society so it should be alright? Where are the secret escape routes that Kisuke-niichan set up again?'
Aizen soon reached Claire's side and the space around him started twisting. It was then that Claire was sure that she really couldn't say no and hurriedly said, "Uncle Aizen, let's not do that. We have prepared a proper channel for teleportation. If you go there like that... We probably won't be able to talk for a while."
"Then I leave it to you."
Claire turned to the stunned group and called out to one of them, "Ishida-niisan, please take care of that report. I'll be leaving first."
"A-ah... Sure." Uryu could only absentmindedly answer.
"Thank you." After a small bow, Claire activated her Teleportation Magic, taking her and Aizen away.
It's only a minute later that someone spoke up, "...What was that?" Chad asked everyone, not sure if Aizen somehow put them under his illusion.
Uryu fixed his glasses and asked Ichigo, "Ichigo, can you contact the Soul Society and ask them what just happened?"
"...I will, but I'm just glad it didn't devolve into a fight. Looks like he has already recovered most of his abilities."
When they heard Ichigo's assessment, they all shuddered and also sighed in relief.
"But who the hell is this Claire? How can she casually talk to and call that guy 'Uncle'?" The Fullbringer, Riruka, asked. Although Aizen was already gone, her entire body was still shivering from fear.
Nobody could answer her question.
.
.
.
Mayuri was standing in front of all the current Captains and Lieutenants of the Gotei 13 who just received their physical bodies except for Soifon, "Go test your bodies outside. Tell me if you're feeling something wrong."
However, no one is really listening to him and they are just blankly turning around and stretching their limbs. Mayuri sighed at this sight but let it go, 'Well, there shouldn't be any major problems. I just need to know how much of their abilities they can actually release.'
Mayuri scratched the side of his face in contemplation. He thought that the bugs would be a good target practice for these people but they have suddenly retreated, 'There's nothing else I can do aside from wait. I should focus on the nobles and their vassals transitioning.'
It was at this moment that a familiar and oppressive descended on the whole Seireitei, 'Oh? Maybe we can test it out after all?' Mayuri turned to the direction where the aura appeared and smiled.
The others in the room, however, don't have the same expression as him aside from Zaraki who was thinking the same thing as him.