Kyosuke, Madoka, Hiraku & friend go on a vacation to the beach, staying in 2 cabins, boys in one, girls in another. It's basically Kyosuke & Madoka get together, & Hiraku flirts with the blond guy friend. Then, Kyosuke & Madoka go night swimming with dangerous results.
| Production | Minoru Ono | Producer |
| Directing | Tomomi Mochizuki | Director |
| Writing | Kazunori Ito | Screenplay |
| Sound | Shiro Sagisu | Music |
| Production | Masaaki Fushikawa | Producer |
| Sound | Fusanobu Fujiyama | Sound Director |
| Visual Effects | Masako Goto | Animation Director |
| Art | Mitsuki Nakamura | Art Direction |