Osomatsu-kun

Osomatsu-kun (おそ松くん?) is a manga series by Fujio Akatsuka which ran in Shōnen Sunday from 1962 to 1969. It has been adapted into two different anime series of the same name, the first in 1966, produced by Studio Zero, and the second in 1988, produced by Pierrot and aired across Japan on Fuji Television and the anime satellite television network, Animax.