OVA
Finished airing
1 episode
Nagato Yuki-chan no Shoushitsu: Owarenai Natsuyasumi
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」
Characters and voice actors
Staff and studios
Tanigawa, Nagaru
Original creator
Machida, Touko
Series composition, Script
Itou, Noizi
Original character design
Katou, Tatsuya
Music
Tanimoto, Chie
Color design
Satelight
Animation production