The Beginning of Everything

After the war between the god of death and the Angel of Death. The Grim Reapers need to find the reincarnation of Shinigami. A grim reaper named Neru think that Shinigami puts his soul in the body of a high school girl. The landlord of the Grim Reapers give Neru 3 months to prove to her that she's the chosen one.

Can Neru do it before Azrael takes every human souls in the world?