Hideki Hinata comes to in an afterlife shaped like a high school, among students who insist the place is real and that no one here stays dead. There he meets Yuri Nakamura, takes to calling her Yurippe, and the two begin planning a rebellion against God. Set before Otonashi ever arrives, this manga follows the Track Zero side of the story, tracing the early days that end with the founding of the Shinda Sekai Sensen.