Kingdom Hearts χ Back Cover is a oVA anime that premiered in winter 2017, produced by Square Enix.

About the production: the story comes from a video game, there is 1 episode of about 62 minutes and its current status is "finished".

Its main genres are action, fantasy and mystery, with themes such as Magic, Full CGI, Primarily Male Cast and War.

On AniList, Kingdom Hearts χ Back Cover has an average score of 67%, a good score, and appears on 2,212 users' lists.

Long ago, in the "age of fairy tales," the world's light is protected by seven individuals who reside in Daybreak Town and wield unique weapons called "Keyblades": the Master of Masters and his six apprentices. A devastating conflict has been foreseen, and the world's end is imminent. In order to heal it, the Master of Masters gives his disciples unique roles and instructs them to form Unions comprised of other Keyblade wielders. Soon afterwards, the Master vanishes. (Source: KH Wikia)

Official synopsis from AniList.