Set on Hashima Island in Nagasaki Prefecture during the coal industry's rise in 1955, this story follows themes of family, friendship, and love. It contrasts the post-war era, where people had little but were full of dreams, with present-day Tokyo, where abundance prevails, but young people struggle to find their dreams.
Is The Diamond Sleeping in the Sea on Netflix? Unfortunately this serie is not yet available on Netflix.
| Writing | Akiko Nogi | Writer |
| Directing | Ayuko Tsukahara | Director |
| Directing | Ryôsuke Fukuda | Director |
| Directing | Ryōsuke Fukawa | Director |
| Production | Junko Arai | Producer |
| Production | Akiko Matsumoto | Producer |