The Irregular at Magic High School

is a Japanese web novel series by Tsutomu Satō. It was published on Shōsetsuka ni Narō, a web novel website, from October 2008 to March 2011. Satō reached a deal with Dengeki Bunko and began releasing his work in a light novel format beginning July 2011. The story takes place in the 2090s where technology has allowed magic to exist, and follows Tatsuya and Miyuki Shiba, siblings who enroll into First High magic high school. While keeping their connections to the infamous Yotsuba clan secret, they attempt to live their daily life in peace, but Tatsuya is shunned for his apparent ineptness and Miyuki is validated for her magical abilities.