The Disappearance of Nagato Yuki-chan: I Cannot Let Summer Break End
An OVA released after the end of the The Disappearance of Nagato Yuki-chan. It was released as a bonus with the limited edition volume 9 of the manga.
- Genre: Animation, Comedy
- Director: Junichi Wada
- Cast: Tomokazu Sugita, Minori Chihara, Aya Hirano, Yuko Goto, Daisuke Ono
- Country: Japan