Intro. Kurumi Tokisaki starts out as a normal human until she is attacked by a monster and saved by a spirit that turns her into one. Initially, she was tricked by Mio Takamiya into believing she was saving the world by fighting corrupt spirits, but soon discovers that she had unintentionally killed her best friend, Sawa, in the process. This deception, coupled with her personal loss, drives her to develop a deep hatred for Mio and to dedicate her life to harvesting other people's time so she can use a special bullet to travel back in time and kill Mio, thus preventing the creation of all the spirits. Kurumi Tokisaki was an ordinary young human girl who, after being attacked by a monster, was transformed into a spirit by Mio Takamiya under the promise that he would help her fight them. However, the story reveals that Kurumi was tricked into having her powers serve the purposes of Mio, who turned her into a spirit on Earth and used her purposes.