The Irregular at Magic High School, Vol. 12 (light novel): Double Seven Arc (The Irregular at Magic High School, 12)

April, 2096. Despite all the commotion they were involved in, Tatsuya and Miyuki have safely advanced to become second years. In light of all of Tatsuya's accomplishments, a new curriculum known as the Magical Engineering Course has been established, granting him a new place in school. With his new classes and position as acting student council Vice President, Tatsuya is certain that this year for sure, he'll be able to enjoy a peaceful time at school with his sister...until three new students from elite Numbered families raise hell as first years!!