IS: Infinite Stratos 2 – Hitonatsu no Omoide (Dub) 6.89
Other Name: IS: Infinite Stratos 2 - Hitonatsu no Omoide, IS: Infinite Stratos 2 Long Vacation Edition - The Memories of One Summer, IS 〈インフィニット・ストラトス〉2 ロングバケーション 一夏（ひとなつ）の想いで
Summary: An extended version of the second season's first episode, which is under the same title.
