Angel Beats

Angel Beats! takes place at a high school acting as a Purgatory, where students learn to give up any lingering attachments they still have from life before continuing to an afterlife or reincarnation. While the injury or cause of death are gone, those in the afterlife school can still feel pain or other things as they did when they were alive, as well as dying again, only to awaken with no injures several minutes later. The story follows the main protagonist Otonashi, a boy who lost his memories of his life after dying. Upon awakening in the afterlife, he meets a girl named Yuri who invites him to join the Shinda Sekai Sensen (SSS) , an organization she founded and leads which fights against God for the cruel fates the SSS members experienced in life.