Career
From 1999 to 2002, he released the four-panel manga series Azumanga Daioh, about a group of high school girls, which was adapted into an anime series. In 2003, he started a slice-of-life manga series Yotsuba&!, about the adventures of a six-year-old girl. lieutenant is serialized in the monthly magazine Dengeki Daioh.
Prior to these series, he worked on a hentai manga called Inma no Ranbu under the pseudonym Jōji Jonokuchi (序ノ口譲二).