Seirei Gensouki: Spirit Chronicles (Manga) Volume 9

As the heroes from Earth become entwined in the fraught politics of his world, Rio remains resolved to investigate where they are and how they were summoned here. He determines the next best location to search for information is Strahl, where he can reunite with the teacher he holds so dear. However, power has shifted in Strahl, and Rio's beloved professor now has a prior engagement...