After turning into breadcrumbs, Si-bianjun found himself reborn and returned to the past.
He hadn't evolved into an Arrancar at that point;
He hadn't met Lord Aizen at that time;
He didn't see the woman at that time either.
Now reborn, his daily job is to squat silently in the corner of the world, drive away the void around her, drive away the god of death who works here, and protect her life...
This is the story of a reborn male supporting character who transforms into a loyal dog and becomes a male protagonist in another world.