Kaiji Kawaguchi

In elementary school, Kaiji and his younger identical twin brother Kyōji became engrossed in manga. Kyōji took over running the Kawaguchi family business, but was also a manga artist before dying in 2013. Kaiji's daughter Nirako is an illustrator, while his eldest son Kōhei is a Kanze noh actor. In 1968, Kaiji made his professional debut with Yoru ga Aketara in Young Comic at age 21, while still attending Meiji University.

He has received the Kodansha Manga Award three times, for Actor in 1987, The Silent Service in 1990, and Zipang in 2002. He has also received the Shogakukan Manga Award twice, for A Spirit of the Sun in 2006 and Kūbo Ibuki in 2018.A Spirit of the Sun also won the 2006 manga award at the Japan Media Arts Festival.

In the middle of serializing Hard & Loose (1983–87), Kawaguchi started drawing the eyes of his characters bigger. This was a suggestion by his editor, who told him that emotion is conveyed through the eyes. Before he made this switch, Kawaguchi said he never would have thought he would be able to draw Westerners and set his manga overseas. The artist cited his work in Actor (1984–88) as the basis for his current style. Kawaguchi was a heavy smoker who insisted a cigarette was "indispensable" when drawing. However, after being treated for esophageal cancer in 2019, he quit smoking.

Kaiji Kawaguchi (Japanese: 川口 開治 or かわぐち かいじ, Hepburn: Kawaguchi Kaiji, born July 27, 1948) is a Japanese manga artist. He is known for works such as The Silent Service, Zipang, A Spirit of the Sun and Kūbo Ibuki. Generally, his stories involve Japan and examine the moral choices that people make in extreme situations.