짱구는 못말려
In August 1990, his series "Crayon Shin-chan" began running in "Weekly Manga Action", the series started as a spin-off of the character Shinnosuke Nikaido (二階堂信之介) of Darakuya Store Monogatari. An animated series based on the comics began in 1992, and a "Crayon Shin-chan" boom followed the release of a 1993 animated film. For a year beginning in 1995, Usui's "Super Shufu Tsukimi-San" comic strip ran in the magazine "Manga Life".