The OVA will be bundled with the 7th volume of the manga, scheduled to ship on August 26, 2015. It will be a sea bathing episode.
| Directing | Akira Iwanaga | Director |
| Art | Maho Takahashi | Art Direction |
| Sound | Kaori Sadohara | Theme Song Performance |
| Sound | Saeko Zogo | Theme Song Performance |
| Visual Effects | Yukiko Akiyama | Character Designer |
| Sound | Naoki Chiba | Music |
| Sound | Katsunori Shimizu | Sound Director |
| Writing | Masashi Suzuki | Series Composition |
| Crew | Osamu Takahashi | Creator |
| Visual Effects | Ippei Ichii | Animation Director |
