Extra episode of Nagato Yuki-chan no Shoushitsu bundled with the limited edition of the 9th manga volume.
Synonyms: The Disappearance of Nagato Yuki-chan: I Cannot Let Summer Break End, 長門有希ちゃんの消失 第17話「終われない夏休み」
Status: Finished Airing
Country: Japanese
Released: 2015
Season: TV Series