Chapter 1: Return of the Arrancar

In the Research and Development Institution of the Soul Society, Mayuri is all alone working on some short of experiment. It appears to be a red crystal, about the size of an average adult middle finger. Mayuri was handling it with extreme care, checking all sides of it using a microscope. He did not want to break any part of this crystal, for it holds powers that are beyond anyone's wildest imagination. The power behind it? He did not know. This crystal, however, matched the exact description, weight, and material, everything, that was found in a millennium old book, Arrada. According to the people who wrote this book, this crystal had extreme power. However, every artifact that the book talked about, and Mayuri located, their powers were described in this book, and they were true. But this red crystal, this item was the only one without a power description. Mayuri needed to unlock this item's secrets.

As Mayuri was putting away the microscope, for he was done for the day, a huge explosion occurred in the institution. There was a hole in the wall where Mayuri was facing, and beneath the rubble was none other than Nemu.

"The perfect being, huh? There is no such thing as perfect in this world. That may sound cliché, but it's the truth. The average person admires perfection and seeks to obtain it. But, what's the point of achieving perfection? There is none. Nothing. Not a single thing. I loathe perfection! If something is perfect, then there is nothing left. There is no room for imagination. No place left for a person to gain additional knowledge or abilities. Do you know what that means? For scientists such as ourselves, perfection only brings despair. It is our job to create things more wonderful than anything before them, but never to obtain perfection. A scientist must be a person who finds ecstasy while suffering from that antimony." A robber-type masked man said as he entered the hole. He was wearing a black Shinigami Outfit, and had a regular Zanpakuto.

"What did you just say?" Mayuri asked, confused at the fact that this Shinigami knew those exact lines.

"Were those not the words you said to a certain Esapada? I believe his name was, Szayelaporro Granz? Well, I just thought you'd just like to hear those words, because my Zanpakuto is what you despise, perfection. Just taste a bit of its power." The man said as he pointed his blade into the air. "Genjitsu!" Suddenly, the whole room began to shake, and just like that, the crystal fell out of Mayuri's hand when he wanted to grab it, and landed next to the intruder.

The shaking stopped and the intruder picked up the ruby, placed it on his blade, and watched as it absorbed it. "There is nothing you need to say about what you just witnessed Mayuri. Let me do all the talking. You see, the quake you just experienced was the power of my Genjitsu. Reality, it made something that I wanted into a reality, affecting everything and everyone, including me. What I wanted was for the ruby to come to me, and so it did. This ruby, the one you know so little about, even from the famed book, Arrada, is what was needed for my Zanpakuto's bankai. It's strange, I know, but that was just how my sword was created."

Mayuri hissed at this info and asked, "Why wouldn't that Zanpakuto appear in the famed book then? Why not?"

The man chuckled, and then said, "Because, you fool, this book was created by Aizen himself." Mayuri's eyes widen at those words. "Yes, Aizen. He was the one who created this book. Oh, how much I would have loved for Aizen to be here, but you guys imprisoned him. Not only that, but Ichigo regained his powers. Of course, I doubt he can use that move of his. The name of this book, Arrada, came from the two words, 'Arrancar' and 'Espada'. The end of the Soul Society is near. Bankai Kagirinai Genjitsu".

Suddenly, the sword vanished from view and a huge laughter can be heard all across the lab. "My, to think that you were able to vanquish all these Soul Reapers. Thank you for not vanquishing Mayuri, I want him for myself."

"Well, it looks like you have a visitor Mayuri. From now on, the true games begin. Let's see what you can do." The masked man said as he himself vanished from view, leaving Mayuri there alone.

It was then that Mayuri began to feel a huge pain in his stomach and blood flowing out of his mouth. "What's…this? No, it can't be!"

More laughter can be heard as Szayelaporro Granz walked into the hole into the wall, in Resurreccion form, carrying a doll of Mayuri and his organs. "Too bad Mayuri, it seems as if I destroyed your stomach. It looks like your death has arrived. Good night, old pal. We shall never see each other again." The Espada then left the room, leaving a shocked Mayuri there to die.