The Big Secret of Blue Water S4E4 - The Big Secret of Blue Water
- Released:
- Runtime: 50 minutes
- Genre:
- Stars: Noriko Hidaka, Yoshino Takamori, Toshiharu Sakurai, Yuko Mizutani, Kumiko Takizawa, Kenyu Horiuchi, Akio Otsuka, Motomu Kiyokawa, Kikuko Inoue, Chikao Ohtsuka, Hiroshi Masuoka, Hitoshi Takagi, Kaneto Shiozawa, Kappei Yamaguchi, Koji Tsujitani, Tamio Ohki, Teiji Ōmiya, Toshihiko Seki, Tsukasa Itou
- Director: Kazuya Tsurumaki