The The Irregular at Magic High School, Vol. 17 (light novel) Master Clans Council Arc, Part 1

With the New Year comes a wave of changes. Though few are surprised that Miyuki has formally been recognized as the next head of the Yotsuba family, no one could have anticipated her engagement to Tatsuya would be finalized at the same time. As Honoka and the others try to digest the information, the Ichijou family immediately objects to the union, proposing that Miyuki marry their scion, Masaki Ichijou, instead. Meanwhile, with the world of magic watching intently, the powerful gather to select the next Ten Master Clans...

Tsutomu Sato is the author of the hugely popular light novel series, The Irregular at Magic High School.