Lucky Star is a Japanese four-panel comic strip manga series by Kagami Yoshimizu. It has been serialized in Kadokawa Shoten's Comptiq magazine since December 2003. Cameo strips were published in other magazines such as Shōnen Ace and others. It has no ongoing plot and typically focuses on the daily lives of the characters.

Kadokawa Shoten (角川書店), formerly the Kadokawa Shoten Publishing Co., Ltd. , is a Japanese publisher and division of Kadokawa Future Publishing based in Tokyo, Japan. It became an internal division of Kadokawa Corporation on October 1, 2013. Kadokawa publishes manga, light novels, manga anthology magazines such as Monthly Asuka and Monthly Shōnen Ace, and entertainment magazines such as Newtype. Since its founding, Kadokawa has expanded into the multimedia sector, namely in video games and in live-action and animated films.