About “Ninpen Manmaru”
Manmaru The Ninja Penguin, released in Japan as Ninpen Manmaru (忍ペンまん丸), is a Japanese manga series written and illustrated by Mikio Igarashi. It was serialized in the Enix magazine Monthly Shōnen Gangan from 1995 to 1999. A 48-episode anime adaptation was produced by Shin-Ei Animation, directed by Tetsuo Yasumi, and broadcast on TV Asahi between July 5, 1997, and March 28, 1998. (Summary adapted from Wikipedia, CC BY-SA 4.0.)
More by Mikio Igarashi
Some summaries adapted from Wikipedia, CC BY-SA 4.0.