Bleach: Encroaching Entity Years ago there was a being that transcended all of the known power types, his name was Chronos. He was a quincy that had died and become a hollow, upon his purification he became a shinigami. Later as a shinigami he tried and experimental drug called the memory candy, this combined with his time bankai powers allowed him to recall all the memories he had while being a human and a hollow, greatly increasing his reiatsu. His body being made of reishi also remembered the forms he had had. Allowing him to unlock the true potential of his powers. All people have a dual side, this is called their alternate, their alternate is their true spiritual side. When you become a shinigami this alternate is manifested in your zanpaktou, as a hollow in your hollow form. Chronos now with the combined stages of his evolution was able to fully access his alternate form. He is the Detrahamus Entitatem, the Encroaching Entity. But still there are strange goings on as humans, shinigami and hollows all over the dimensions were vanishing suddenly. Only to wake up, different somehow.