Rei and his wives were in the middle of their vacation when Rei decided it was time to finally perform the second reason why he wanted them in his dimension. After all, he finally finished his little bijuu project.

Rei led the girls into a room containing a massive sealing matrix spreading through the roof, walls, and concentrating on the floor where six circles with the exact same distance between them were inscribed. ​​

"Each of us will sit in one of these circles." Rei informed them after seeing the curious looks they were shooting the sealing matrix. None of them ever saw so many seals concentrated on such a little place. Even Tsunade who had the most knowledge about sealing among the women knew that this should, by all means, result in one massive explosion after the seals start to interact with each other. Suddenly, a realization flashed through their heads.

"This is why you limited our access to the Dimension! You were testing this, weren't you?" Konan asked but her admonishing tone clearly conveyed there was no need for an answer.

Rei could almost see the mouths of his wives opening as thoughts were flashing through their eyes that glared at him worriedly. He had to act fast and say something or be bombarded by angry verbal spanking from five women who felt wronged. 'Dear me...' Rei bitterly thought.

"Yes... Now, I won't doubt your intelligence by lying and saying I used clones for it. We all know there is no way of using only clones for something like this." Rei hurriedly started. His remark thankfully stopped the incoming nagging but it was obvious the storm didn't pass yet. "I had to oversee it myself and..."

"How many?" Tsunade interrupted in a quiet tone and a deathly silence descended on the group. She raised her and glared at Rei before seeing he was reluctant to answer. "How many near-death experiences did it take for you to succeed?" She repeated her question and crossed her hands under her blossom in a displeased manner.

The other four also didn't look very pleased with Rei at the moment. Even Mei understood the implication of what exactly Rei had to do to create the sealing matrix. Such a thing would be extremely explosion-happy and accident-prone. In order to oversee it, Rei would have to be close to it. And since not much of the Dimension was damaged, Rei most likely cut the parts the matrix was located in off from the rest of the dimension, creating a smaller sub-dimension. That only meant Rei was most of his time in the recent years trapped in a small sub-dimension with a very explosive sealing matrix that could most likely go off into the air like a blasted bijuu-dama any moment of a day just because two strokes in a kanji disagreed with each other.

Oh yes, Rei's wives were not having a good time imagining that kind of situation.

Rei awkwardly scratched the back of his head as he wryly smiled at his girls. He had no idea how to appease them so he went with, "Eh, don't worry about the number too much... at least it gave me practice for some defensive Jutsu. I can now say with utmost certainty that even bijuu-dama would be hard-pressed to kill me!" He exclaimed.

Alas, instead of the relieved look he was expecting, the five women in front of him only deepened their glares.

'That was a bad thing to say, wasn't it?' Rei idly thought before the screaming began.

...

Five hours. That's how long it took for the five women to calm down. Never in his dreams would Rei think Konan could be so loud. Honestly, he wasn't an idiot and knew this would be their reaction. Being ninja meant getting better at reading people and he frankly expected Tsunade to plummet him to the ground for this. Researching the sealing matrix was veritable suicide. Thankfully, Tsunade only screamed her frustrations at him until her throat was hoarse and then clung to him as if her life depended on it. In a way, that was way worse than punching him with her super-strength because it really conveyed how hurt she was and it certainly made Rei feel bad.

Closed-off small sub-dimension going off in one massive explosion... yeah, Rei actually had to spend half-year inventing seals capable of keeping him alive from that before he even started with the real work. Of course, that was after he was almost blown to smithereens due to the first failed attempt... not that he would mention that to his girls anytime soon.

Rei made sure to blurt it out like that because that way, he expected the least damage. He naturally knew the second his girls saw the room with the matrix, the lightbulb would go off in their heads and they would instantly understand what it meant.

If Rei actually shared the method he was using to invent the sealing matrix for creating artificial bijuu, he was sure that he would find himself prevented in any way possible from continuing. Hence, he kept the method secret. He could only thank gods none of his girls knew enough of sealing to guess the process and how explosive it was without actually seeing the matrix.

Fortunately, the five women now reluctantly sat in five of the circles while Rei took the sixth.

"Remember to follow the steps." Rei reminded them one last time, getting a few eye-rolls in return which prompted him to smile. He trusted each of them too much to believe they could ever botch it up.

Pushing a wisp of his chakra into the starting sequence, the sealing 'ritual' began.

...

Tsunade was pissed. Knowing her husband was trying to perform suicide for years made her almost tear up from the sheer rage. She simply didn't understand why this was even necessary. Weren't they already strong enough? Surely, even her grandfather would have problems facing them now. And yet, Rei still wanted to give them an edge. For what?

As she sat in one of the six circles, she decided to get answers to these questions. Suddenly, the runes started to glow slowly bright blue as chakra traveled through them and Tsunade could clearly feel it. The nature energy of the dimension started to be sucked into the small building where they were currently in, storing itself into the seals around the circles they sat in. The whole process was almost fascinating for Tsunade. She heard from Konan how it felt to create the Dimension but this...

Her whole being was filled with euphoria as her senses were being bathed in an ocean of soothing nature energy, engulfing her in its entirety. Winds picked up despite them being indoors, chakra started leaking from their bodies into the seals without them even having to do anything. It was all very calming but despite feeling elated, Tsunade knew better. She was the medic ninja of the group and well aware the seals completely shut off the feeling of pain in their bodies. She mentally shuddered at thinking how painful this would be without that. The seals that leaked chakra would most likely set every nerve ending on fire.

The nature energy and the chakra were furiously smashing into each other, the seals slowly taming them and molding them into something else after the energies merged.

The first five minutes were pure bliss.

The next fifteen minutes were still very enjoyable but worry started to seep into Tsunade's mind.

It was however the last forty minutes that had her frowning when the chakra didn't stop leaking. Naturally, as someone who almost died from such a leakage, Tsunade was scared witless when her chakra levels hit 20% full. Since Rei bonded to her, saving her life, she never once went under fifty percent of her full reserves. One could say she had an almost hysterical fear of being low on chakra and this situation was not helping her mental state... not at all.

Inwardly freaking out, Tsunade trembled as even more chakra left her. She shared this worry of hers with her new family but now... she regretted it. Rei would certainly not make this matrix if she did. Tsunade wanted to curl into a ball and start whimpering.

And then, she heard Rei's voice, "Now! Imbue the secondary consciousness!"

Cold calm swept her shaken mental state, and as if in reflex, Tsunade used the technique derived from shadow cloning Rei taught her, to create a secondary consciousness and imbued it into the chakra/nature energy construct in front of her.

With that... her mind grew numb and Tsunade felt as if somebody hit her head with one of her super-powered punches sans the pain. Disoriented, she felt her head spinning and her senses going haywire. For a second, Tsunade thought she was feeling things from two different perspectives and it was beyond weird but when she was about to focus on this feeling, she was dragged into her own mind, her head snapping back as if slapped.

Shaking herself from the surreal experience... Tsunade saw it. In front of her, a small fox with blond fur resembling her hair was sitting and wagging her tail while confusedly looking at her.

Anf Tsunade could feel her chakra again. Her full reserves. Of which, 90% were currently cutely yipping at her. Her own chakra... alive.

Speechless... didn't give her current state any justice.