長門有希ちゃんの消失 第17話「終われない夏休み」
The Disappearance of Nagato Yuki-chan: I Cannot Let Summer Break End
OVA PG-13 HD Sub 1
Extra episode of Nagato Yuki-chan no Shoushitsu bundled with the limited edition of the 9th manga volume.
長門有希ちゃんの消失 第17話「終われない夏休み」
Extra episode of Nagato Yuki-chan no Shoushitsu bundled with the limited edition of the 9th manga volume.