Kaiketsu Lion Maru (快傑ライオン丸 Kaiketsu Raionmaru), The Vigilant Lion Knight (or literally translated as Swift Hero Lion Maru), was a Japanese tokusatsu television series in the Lion-Maru franchise that aired in 1972-1973, produced by P Productions and set during Japan's Sengoku period (the Age of Warring States).
During the late 16th century, a trio of ninja orphans are wandering Japan and saving people from evil by battling a villain of the week in each episode.

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Episode01 / Episode02 / Episode03 / Episode04 / Episode05
Episode06 / Episode07 / Episode08 / Episode09 / Episode10
Episode11 / Episode12 / Episode13 / Episode14 / Episode15
Episode16 / Episode17 / Episode18 / Episode19 / Episode20
Episode21 / Episode22 / Episode23 / Episode24 / Episode25
Episode26 / Episode27 / Episode28 / Episode29 / Episode30
Episode31 / Episode32 / Episode33 / Episode34 / Episode35
Episode36 / Episode37 / Episode38 / Episode39 / Episode40
Episode41 / Episode42 / Episode43 / Episode44 / Episode45
Episode46 / Episode47 / Episode48 / Episode49 / Episode50
Episode51 / Episode52 / Episode53 / Episode54