Angel Beats! - Heaven's Door. In a world after death, Yuri, the Shinda Sekai Sensen's leader, rebels against the god who had cursed her to have a life of unreason. On the other side, after death, Tenshi (Angel), the president of the student council for the world, battles against leaders of the SSS. Leaders of the SSS use powerful arms to defend against the harnessing spiritual powers of the angel. A prequel to the anime, that shows the Afterworld Battlefront creation. The novel version covers the manga's first 23 chapters.