Tanaka Isson (1908-1977) was a lover of nature in the Amami-Oshima Island, a keen observer of plants and birds with painting skills and also powerfully subtle paintings depicting flowers and birds nihonga painter. He had a typical artist’s life, unknown, poor, lonely until his death, even a so talented "child prodigy", the seven-year-old child received the Emperor Award at a painting exhibition. When he was 50 years old, he moved to Amami-Oshima Island, which is located in the sea south of Kyushu. He made a living as a dyer at a large local industry, Oshima Tsumugi (mud-dyed pongee kimono), then he painted for while after he saved a little money. Even after his death in 1977, nobody knew about his painting until national TV aired a documentary about his works.
• "Dorozome" is one of the traditional dying methods with muddy clays in Amami-Ohshima Island, Kagoshima, Japan. The brilliant black color of dyed "Ohshima Tsumugi" derives from muddy clays in Dorota (small ponds with muddy clays).