Light Novel Volume 10

Rakudai Kishi no Cavalry Volume 10 is the tenth installment of the Rakudai Kishi no Cavalry light novel series, written by Riku Misora and illustrated by Won, to be released on April 14, 2016. It officially starts the Vermillion Empire Arc.

Publisher's Summary
Ikki was tense as his formal welcome into Stella's family came closer. As he feels the anxiety over being fully accepted by as Stella's partner, Ikki made a touchdown on Vermillion Airport. There, he was received by a crowd of people from the country. The warm welcoming mood softened even Ikki's nervousness, but...

"Ikki Kurogane! The Vermillion Kingdom challenges you to a duel!"

Isn't this too much for a delusion!? All of a sudden, a battle between the Worst One and the Vermillion Kingdom breaks out. Meanwhile, behind the scenes, an evil shadow who was shown only in glimpses begins its maneuvering!

Rakudai Kishi no Cavalry unfolds its newest chapter, the "Vermillion Empire Arc"!