Chapter 1: Tosen
Tosen's reasons for allying himself with Aizen were simple.
In the world of the living, Tosen was born blind. The villagers were not very willing to support a boy who could not work in the fields or have a profession or join the army. Tosen could not pull his own weight, so he was killed in his sleep.
When Tosen awoke as a soul, he saw his body and he understood what had happened. He knew that he was dead. He wept bitter tears of hate and despair from his unseeing eyes, and he cursed the world of the living.
The Shinigami who arrived to take him to Soul Society told him that it was a better place, with equality, with justice, and with civilized people who would treat him fairly. They told him that those with physical disabilities in the real world, such as Tosen, would be cured when they were reborn in Soul Society. Tosen believed their lies eagerly because he had nothing else to believe in. He became intoxicated by the allure of the utopia the Shinigami described. He accepted their Konso without hesitation.
When he arrived in Rukongai, Tosen couldn't tell the difference between it and the world he had just left. Here, he starved, because his blindness prevented him from getting a job. There were no charities to support the poor, let alone the blind. There was nobody providing fairness or equality. There was no justice in this world, just like the other world, just like, Tosen surmised, any other world there had been or ever would be.
Then one day, Tosen met her. She was a Shinigami, and she actually cared about him. She gave him food, shelter, and love that nobody else had given him. She defended him from the cruel world. When Tosen met her, his life changed. He laughed at himself for believing that there was no justice in Soul Society. Here was justice in the form of a woman. Now, Tosen believed that no matter what hardships you went through, someday, someone would come into your life, and that person would be your justice.
And then she died, killed by her own husband. What crime had she committed to deserve this punishment? Where was the justice in this?
And again, Tosen laughed bitterly at his foolishness. There was justice in this world, but it would rot and die, just like all the other mortal beings that infested the earth. Justice couldn't be relied on, justice could be bribed and corrupted and killed, because the justice that the world had was completely useless.
And if justice was useless, what was stopping him, a man with the power to be justice? The woman had discovered his latent spiritual powers, so he enrolled in the Shinigami Academy. He quickly ascended the ranks of the Gotei 13, joining the 9th Division. He had power, so why shouldn't he use it? The justice certainly wouldn't stop him.
He would use his power to make his own, immortal justice. He would kill them all, the heartless souls who had deprived him of what was needed to survive, the Shinigami that had lied to him, the corrupt bastards who gave the woman's husband a lenient sentence because he was a Shinigami.
He would become his own justice, and he would not be imperfect, like the other justices. They enticed men with false hopes and lies about equality. They were weak and blind to the evils of the world. How ironic that he would be the true justice. He would be strong. He knew what the race of men was made of. They wereall sinners, and their punishment would fit their crime.
And he would be the only justice left. And he would judge all the depraved souls that populated the lands and he would kill them.
But Tosen couldn't do it alone. He needed allies to become justice. Aizen became that ally. He would be the justice of Aizen's world.
Tosen's reason was very simple.
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