Shinigami, Quincy, Humans and Visored must Team up to defeat the Saint Beast and the Arrancar before thay can take over the world's.
The Saint Beasts and Arrancar have been plotting for some time to take over the Human world and the Soul Soceity since they both formed an alliance several years ago.
Previously the Saint Beasts and Arrancar were alied but with neither side paying any attention to the alliance. untill the new Saint Beast king took it into their own hands to plot an attack on the worlds they were not welcome.
... and so a war begins
(more to be added later)