
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.
Umi ni Nemuru Diamond is a Japanese drama of 67,449 characters, with 4,422 unique words and 1,301 different kanji. Its difficulty rating on Jiten is average, 2.4 out of 5. The full vocabulary list ranks all 4,422 words by how often they appear, and you can study them on Jiten or download them as an Anki deck.
Here are some of the words that appear most often in this media, as well as a sample of its rarer vocabulary.