The story revolves around the life of Otonashi who lost his memories of his life after he died. He has red hair with burgundy eyes, wears a white long-sleeved polo shirt with black neck tie under a sandy brown coat, black slacks with black belt and brown shoes. He was enrolled in afterlife school and met Yuri, the rifle-toting girl who explained that they are in afterlife explains that they are in the afterlife. Yuri has magenta-purple hair with simple dark purple headband having mint ribbon dangling at the right side, sea green eyes, wears sandy brown blazer uniform over a white polo shirt, short pleated skirt, and black shoes. After founded SSS, she wears different uniform along with its members, a typical sailor fuku white uniform with blue collar, blue skirt and a dark pink ribbon for girls but don’t wear it, black thigh-high socks and black shoes.
Kanade, Hinata, Naoi along with Otonashi was only left after preventing the afterlife world to become true paradise and maintain its limbo state. Otonashi fallen inlove with Kanade but got heartbroken and stayed at the afterlife to help people pass on. Kanade has long silver hair reaching her waist with pale blue hairclip keeping a part of her hair up in the back, gold eyes, wears standard uniform of the Afterlife School; skirt with a white petticoat under, white knee-high socks, and brown loafers. Hinata has soft royal blue neck-length hair with messy bangs, sharp royal blue eyes, wears the same uniform that chooses not to wear the red tie, instead he leaves his coat open which exposes the plain white buttoned down collared shirt, underneath he sports a maroon red T-shirt. And Naoi, has chin-length dark green hair with slightly swept to the right fringes wearing their default uniform and black cap.