Shiro Kaieda is appointed the captain of Japan's first nuclear submarine, jointly built by Japan and the United States in top secret. However, he and his 76 crew members go rogue in this story that delves into themes of nuclear war, international politics, and world peace.

Takao Osawa
as Shiro Kaieda

Hiroshi Tamaki
as

Aya Ueto
as

Yusuke Santamaria
as

Tomoya Nakamura
as

Aoi Nakamura
as

Koudai Matsuoka
as

Kou Maehara
as

Asami Mizukawa
as

Tao Okamoto
as