Bleach: Days on End

Bleach: The Season of War (ブリーチ ワーのシーズン, Burīchi: Wā no Shīzun) is a fanon story centered around the Gotei 13's original membership during a war with a faction of s known as the Tres Dioses.

In the year of 890 AD, a mysterious Hollow arrived in to deliver a warning to the Gotei 13 of an army massing in, said to be lead by an organization of mysterious and powerful Hollows. Failing to heed this warning the are left unprepared for an invasion of all the worlds, meanwhile something dangerous lurks in the shadows, its eyes set on the King of Souls.