Leo the Lion (新ジャングル大帝 進めレオ!, Shin Janguru Taitei: Susume Reo!, New Jungle Emperor: Move Ahead Leo!) is a sequel to the Japanese anime television series Jungle Emperor, or Kimba the White Lion. Osamu Tezuka had always wanted his story of Kimba to follow Kimba's entire life, and the Jungle Emperor/Kimba series was such a hit in Japan that Tezuka produced a sequel, without his American partners, in 1966.[2][3]