Division Maneuver Vol. 2 - Binary Hero (Light Novel)

'"Okegawa Kuon, the reincarnated hero, and Suzuka Hanabi, strongest Cavalleria at the Academy, have teamed up to defeat the Jave Queen. But peace is going to have to wait a little longer, as a mysterious girl named Tooka Nürburg appears, claiming to be Kuon''s sister from his previous life! How will Kuon deal with this sudden apparitionand how will he and Hanabi fight the Jave with their relationship thrown into chaos? Let the battle—begin! "'