"Jungle Emperor Leo" is a long Manga that depicts the relationship between humans and nature through the growth of Leo, a white lion raised by humans.
In a jungle in Africa right on the equator there was a white lion, Panja, who was called the "Emperor of the Jungle." But Panja is killed by a hunter. His wife, the Queen of Jungle, who has been caught by the hunter, gives birth to the son of Panja on a ship bringing them to a zoo. She names her son "Leo" and has him escape from the ship, saying, "Go back to Africa and become the successor of your father." Then a storm comes and the ship is overturned, and sinks with the Queen on it. Leo is washed up on the beach of a port town in the Arabian Peninsula, not Africa. Leo is found and looked after by a boy named Kenichi.
A year later, Kenichi and Leo join an expedition to Mt. Moon, Africa's "phantom mountain," in order to examine the veins of the ore of the "Moonlight Stone." Leo sees the African jungle for the first time in his life, and dislikes this barbaric world where killing is so common. But Leo soon regains his confidence, and establishes an animal kingdom to protect weak animals. Leo grows into a great emperor of the jungle.
From November 1950 to April 1954
Appeared serially in "Manga Shonen"(Gakudo Sha)
"Jungle Emperor Leo," together with "Astro Boy" is Tezuka Osamu's most famous works.
Before "Jungle Emperor Leo," he was based in Osaka, writing for Osaka publishers, but after writing this work, his first full-scale long serial, he shifted his activity base to Tokyo.
Two volumes of "Jungle Emperor Leo" were published by Gakudo Sha, which serialized the Manga in its magazine, but after that no books were published for a long period.
Later, the work was newly published in book form, based on the remake of the first one that had been serialized in the children's magazine, "Disneyland," with some changes. "Jungle Emperor Leo" was subsequently published in book form several times, and since Tezuka Osamu made changes and added details each time, there are now many different versions of "Jungle Emperor Leo."