The Reality of Aizen

He was just an illusion. Somebody named Raiara Onna's zanpakuto had created an illusion, a very real, very powerful illusion, which almost destroyed Karakura. Hienkai, the name of the zanpakuto, was angry with the Soul Society for killing Raiara. She was a captain of long ago, even before Yamamoto became the Head Captain. She was killed for conducting Hollowfication experiments. At first, Hienkai created Aizen Souske and wanted him to conduct Hollowfication experiments and die like Raiara. Then, she realized that she could destroy the Soul Society with this illusion. She had an elaborate plan made up. She waited hundreds of years to put her plan in motion that is, until Urahara Kisuke, the X factor, showed up. He created the Hougyoku, which she realized could create an army of strong Hollows, which were even then, know as Arrancar. There were only fourteen Vasto Lordes in existence. Hienkai decided to make Arrancar out of as many Vasto Lordes as possible and pretend to want to go to the King's Realm. All she really wanted to do was kill as many high-ranking Shinigami as possible. So the reality of Aizen is... a simple, yet complex illusion and a dying zanpakuto with a vengeance.