"Blue Triton" is a science fiction Manga depicting marine adventures, featuring a merman boy's crusade against the ruler of the sea. The main character is a boy named Triton, who is the last surviving merman. He fights the Poseidon Family, the rulers of the sea, who have killed all his family and fellow mermen and mermaids. Although he is raised in human society, he returns to the sea. Surrounded by his dolphin friends, he grows up and meets a surviving mermaid, Pipiko. They soon marry and have seven children. One day he falls into a trap set by Poseidon and is made an enemy of humans, but he stands up and decides to fight against the Poseidon Family.
September 1, 1969 to December 31, 1971
Appeared serially in the Sankei Shimbun Sha
"Blue Triton" was a long piece that appeared serially in a daily newspaper, "Sankei Shimbun," for two years with one page published every day. At the beginning, the main character was Kazuya, a human boy who found and took care of baby Triton. But Kazuya was soon sidelined and Triton became the main character instead. The original title was "Blue Triton," but it was later changed to "Triton of the Sea" when the animated version was broadcast on television.