Panku PonkPanku Ponk.

Panku Ponk (パンク・ポンク, Panku Ponku) is a Japanese children's comedy manga series written and illustrated by Haruko Tachiiri. It began serialization in the December 1976 issue of the Shogakukan magazine Third Grade of Elementary School (小学三年生, Shougaku Sannensei); as the characters aged, it moved to Fourth Grade of Elementary School (小学四年生, Shougaku Yonnensei), Fifth Grade of Elementary School (小学五年生, Shougaku Gonensei), and the shōjo manga magazine Hop, before concluding in 1991. Serial numbers were very short, usually no more than four pages, and were collected in a total of 12 bound volumes under Shogakukan's Ladybird Comics imprint.