Senzui Kururugi


 * "Darkness thrives in his heart, the fallen angel that descends like sunlight." - Seireitou-shishō

Senzui Kururugi (枢木 泉水, Kururugi Senzui) is a male that had once served as the commander of  preceding that of. Known in history as a hero of unrivaled repute that served, his strength and abilities were of such vast quality that he was deemed to be a warrior with no equal; feared by even the that were said to be the very manifestation of nightmares themselves. Unbridled respect for this man resounded in the hearts of every soul that swore loyalty to him and the King of Souls. However, there lay a darker story to Senzui that very few ever came to understand about the man; even in the modern age where his existence is the topic of history books. Driven with an insatiable hunger for conquest, fueled by an equal sense of what he considered to be absolute justice, he worked behind the shadows in order to eventually overthrow the King and take the throne in order to reshape all of as he saw fit. However, his plans were soon discovered by two of his fellow Royal Guardsman; and  respectively. Try as they might, they found their attempt at slaying their mutinous leader nigh impossible, and so, in a desperate ploy to close the curtains on Senzui's intentions, the two acted in unison and sealed away the latter in a powerful. Shōyō and Hanzei had succeeded, but it would not end well for them, as in the eyes of the entire world, they were betrayers who killed their loyal commander in cold blood. For their crimes which would have normally been met with threat of execution, both were exiled from the palace and stripped of their ranks; sentenced to the outlier districts of, never again to see the light of civilization again. But this would not be the end of Senzui; a man who resigned himself to walk the path of conquest.

After the death of Shōyō by the hand of, along with the subsequent destruction of the former's , the seal had weakened sufficiently enough to allow Senzui to escape. However, despite his successful release, Senzui's power was still drastically lower than at his prime and so he would have to bide his time until he would be able to execute Hanzei; the sole link maintaining the effects of the spell restraining his strength. Over the course of a thousand years, Senzui played a hand in many events and situations throughout the ending stages of and the entirety of ; pulling on the strings and influencing the circumstances. He served as the personal mentor at one time to ; slowly instilling in him skills that would harness the unusually high power the latter was born with, while subtlety driving Aizen to darkness and corrupting his heart, eventually pushing him to seek out what Senzui also sought and seize the throne of the Soul King. In the wake of the invasion, Senzui regained enough strength to confront Hanzei, who was weakened by age and inactivity, and murdered his former subordinate. Finally, after centuries of awaiting this very moment, Senzui had returned to his prime condition. Soon, he would continue forth with the plans he set in motion all those years ago. In preparation for his return to the world stage, he has taken as his disciple.