Hyperdimension Neptunia: The Eternity (True Ending) Promised
Choujigen Game Neptune The Animation: Yakusoku no Eien - True End
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）
Sinopsis
Unaired episode 13 of Choujigen Game Neptune: The Animation, included in the 7th BD/DVD volume.