Babel II (バビル2世, Babiru Ni-sei) is a 1971 manga series by Mitsuteru Yokoyama. It was translated into an animated format in 1973 as a television series, in 1992 as an original video animation series and in 2001 as a thirteen-episode television series. Yokoyama's sequel to the series, set in a parallel universe, is entitled His Name Is 101 (その名は101, Sono Na wa Wan-Zero-Wan).
Life seems simple for Koichi, a young student, until he learns that he is the reincarnation of an alien protector who crashed onto the mantle of responsibility as"defender of the Earth", Koichi/Babel teams up with a trio of super-powered alien companions to battle the dark forces of an evil cult leader. The war to save humanity takes Babel from the deserts of southern Asia to the upper east side of Manhattan and ultimately to a final showdown with "the master" in a hidden base nestled in the Swiss Alps. The action is fast-paced and deadly. The fate of the world rests in the ability of this courageous youth to tame his latent psychic power and use it to defeat the enemies of mankind.