Atsushi Anno is a 37 year old Japanese salaryman who commits suicide by jumping from the eleven story bathroom window of his family appartment. He dies and awakens into a void where a self proclaimed goddess tells him that he's in purgatory waiting to be reincarnated. He passes the goddesses test and is reborn into a new world as a female sorcerer.
This is the turbulent tale of how a nobody with a dead end life became one of the most feared sorceresses of all time. This is the story of Shinobu Shikishima.