Choujigen Game Neptune The Animation: Yakusoku no Eien - True End
English title: Hyperdimension Neptunia: The Eternity (True Ending) Promised
Japanese title: 超次元ゲイム ネプテューヌ THE ANIMATION 約束の永遠（トゥルーエンド）
Alternative titles: Choujigen Game Neptune: The Animation Episode 13
Type: OVA
Source: Game
Episodes: 1
Status: Finished Airing
Aired: Mar 26, 2014
Duration: 24 min
Rating: PG-13 - Teens 13 or older
Studios: David Production
Producers: Frontier Works, Media Factory, Animax, Idea Factory, MAGES., Cinema Sunshine
Licensors: Funimation
Genres: Action, Comedy, Fantasy, Sci-Fi

Unaired episode 13 of Choujigen Game Neptune: The Animation, included in the 7th BD/DVD volume.