Tsuyoshi, Shikkari Shinasai

is a Japanese manga by Kiyoshi Nagamatsu from 1986 - 1990. It was serialized under Kodansha's Morning Magazine, completing up to 19 volumes. The series later produced 2 continuations titled and. The live drama adaptation aired on Nippon TV from February 2 to July 12, 1989. The anime adaptation aired on Fuji TV from October 4, 1992 to December 25, 1994.

Plot
Tsuyoshi Ikawa is the youngest son of the Igawa family. Everyone in the neighborhood thinks that Tsuyoshi is a good-for-nothing musclehead, but in fact, he's a dutiful young man who looks after all of the household chores, because his father is always at work and his mother and two elder sisters are lazy and incompetent.