"Do you need anything to remove it?" Yoruichi asked while establishing a communication connection to Sona.
"Normally, we'd have to prepare for an operation." Tenjirou replied while rubbing his chin.
Yoruichi put the call on hold, "Normally... Is it?"
Tenjirou turned to the man who's just silently observing, "I believe you developed a technique to extract foreign objects from souls, correct?"
"I learned it from Urahara and I have to know where exactly it is if I don't want to hurt the soul much more than necessary." Aizen honestly answered.
"Great. Since you're here, you might as well help out." Tenjirou turned his attention back to Koneko and also hovered his hand over her like Retsu, "I'll tell where exactly it is and you don't have to worry about hurting her. I'm here after all."
Aizen let out a short breath and chuckled a bit as he approached from Retsu's side, "Well then, excuse me."
Without any hesitation, Aizen's hand stabbed through the patient's chest.
Kuroka was startled but managed to hold herself back from disturbing him.
Tenjirou verbally instructed Aizen and after prodding around for a bit and making Koneko squirm in pain in her coma, the latter was able to pull out a single strand of gray hair made out of spiritual matter.
What surprised Yoruichi, however, was the fact that even though it's already within Aizen's fingers, she still couldn't feel anything out of the ordinary from it.
"I'm keeping this. Consider this as payment for my hard work." Aizen suddenly said after inspecting the hair curiously.
Yoruichi immediately reacted and said, "Hold on. I'd like to keep some of it."
Aizen turned to her and replied, "Then let me have a container. You have it, right?"
Yoruichi sighed as there's no point in negotiating with him and took out two small bottles specially created by Kisuke to contain and preserve delicate materials. Yoruichi tossed them towards Aizen and the latter cut a small part of the hair.
Aizen then caught the two bottles and placed each part in them before throwing the one containing the exponentially smaller part back to Yoruichi. Yoruichi caught and looked down on it, 'It's not enough to study it, but it's enough of a lead to find that bastard.'
"Now that we're done here. I'm taking my leave." Without waiting for anyone to say anything, he disappeared without a trace. Yoruichi immediately tried scanning his whereabouts using the various spells embedded on the island but failed. He already left the Ouroboros Academy.
"Is it fine to let him go like that?" Retsu asked with an extremely concerned expression.
Yoruichi sighed again before shaking her head, "It's not but what can I do? I'm just happy that he doesn't appear to be hostile."
It was then that Tenjirou stood up and fixed his pompadour, "I'm done here. Retsu, keep up the initial treatment. Shihouin, give me some space on this island. I want to build my White Bone Hell and Blood Pond Hell. She's going to need it if you guys want a speedy recovery."
Yoruichi nodded before turning towards Kuroka and Valerie, "You two take a rest. This is Unohana Retsu and while traditional, she's a good doctor."
Retsu slightly lowered her head to Kuroka and Valerie, "Nice to meet you. I can't be compared to Kirinji-san here, but I'll be in your care."
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Tenjirou thought that it would take a while for Yoruichi to get what he wanted but to his surprise, everything was arranged within just a few minutes of him asking and it was way wider than he initially requested.
"Are you sure you're just going to give this much space to me? Shouldn't the usable area of this floating island be quite limited?" Tenjirou asked Yoruichi.
"You should ask her." Yoruichi pointed out to another young woman with long black hair and a pair of glasses in her twenties directing what seemed to be autonomous machines handling the supplies that Tenjirou would be needed, "She's the one who's managing this whole place and it's in her authority what to give you or not."
Hearing Yoruichi refer to her, the young woman turned and approached them, "Nice to meet you. I'm Sitri Sona, the headmistress of the Ouroboros Academy." Sona extended her right hand towards him, "Regarding the limited space, we can just attach more land to the island so it's not really a big problem."
Tenjirou looked at the hand for a second before returning the gesture, "Kirinji Tenjirou. Nice to meet you too. How are you related to Sitri Serafall?"
Sona fixed her glasses and proudly smiled, "She's my dear older sister. I hope she didn't cause too much trouble."
'Your sister beat me up.' Tenjirou almost instinctively retorted but managed to protect the meager pride he still has, "You... act too different from her."
"She's a bit quirky, but that's what's great about her." Sona replied with a chuckle, "Then shall we hear your story while we do our work? If possible, in full detail, please. And I also have a bit of a request."
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A few hours later, a medium-sized ryokan could be seen standing on the previous empty land that was given to Tenjirou. While Sona was arranging the supplies needed, she heard from Yoruichi detailed information about Tenjirou Kirinji and his plans to build 'rejuvenating' hot springs for Koneko so while he's at it, she requested him to make a normal hot spring for normal use to serve as relaxation spot for the members of the Ouroboros Faction.
"...I was wondering why a member of the Zero Division is cooperating with Kisuke but it turned out like that, huh? It was a much bigger deal than I thought." Yoruichi muttered to herself.
There's so many points that she wanted to hear more about but there's so much fragmented information from Tenjirou's perspective that it was obvious that he too doesn't know much.
"Of course, it's a big deal. Ichibei almost successfully devoured the whole three worlds. But if you want to hear more details, you'd have to wait for Urahara to return." Tenjirou replied while balancing the waters within the White Bone Hell, "Will that white cat be able to take the White Bone Hell in its usual strength?"
"She's going to be fine. I'll ask you to toss in the black cat too since she's too spent and probably damaged her soul too." Yoruichi then turned to Sona who was taking notes, "What do you think?"
"I'm not sure. There are too many holes in the story and it's actually unbelievable from my perspective. However, the soul migration matches with the timeline when Heaven locked their doors and the density of Holy Power around it increased. I'll also have to ask Irina and Akeno to look after Claire to check her actual status. Nee-san might know a bit about Holy Power but nothing beats an actual Angel and Fallen Angel.
"Aside from that, I'll be issuing a return command to all members in preparation for Kisuke and people of another world's arrival."
Yoruichi nodded before asking, "Do you think it's possible to place the Dungeon World in between this world and the Soul Society?"
Sona stayed silent for a moment to contemplate her words, "For finer control of the flow of people, huh... The Beelzebub and Azazel will probably protest against it but I still have some negotiation chips for them so it's doable."
"I see... Then I'll be leaving everything to you." Yoruichi turned around and started walking away.
"Where are you going?"
"I'm going to hunt down the bastard who hurt our kitten and everyone related to him. Once Kisuke gets home, tell him that I'm going in first. Whether he'll have his turn will depend on how slippery these guys are."
Sona could only sigh as she watched Yoruichi wave her hand before disappearing.
"Quite a handful, huh?" Tenjirou commented while continuing his work.
"That's true... But still manageable and understandable. If Kisuke was the one here, he'd probably flip the whole metaphorical table just to spite everyone." Sona replied while also returning to her work of controlling the autonomous bots to finish the rest of the building, "By the way, could you tell me more about my elder sister? Is she alright?"
"I can't say alright but she is recovering."