"改变未来是只要有意识就能做到的事情。"——沙耶，《AngelBeats!天使节拍》OnKate's21stbirthdaycampingtrip,herfriendsencounterPiglet,amonstroushuman-pighybridwhobrutallymurdersoneofthem.TheyuncoverPiglet'soriginsandKatemustconfrontherpasttosurvivetherelentlesskiller.
