Taken from Baka-updates:An anthology of oneshots.Story 1: Promise by NISHI KeikoStory 2: They were Eleven by HAGIO MotoStory 3: The Changeling by SATO ShioStory 4: Since You've Been Gone by NISHI KeikoThe two stories by NISHI Keiko were also published as a separate book in English called "Promise." Those stories were originally taken from "Mizu ga Kooru ni Naru Toki."