Interduchy Tournament

The Interduchy Tournament (領地対抗戦, ryouchi taikou-sen) is an annual event held at each school term at the Royal Academy. Its main event is a tournament of ditter matches between apprentice knights; however, it also includes other events such as socializing and research presented by apprentice scholars.

The Interduchy Tournament takes place the day before the Royal Academy's graduation ceremony, so it is considered a celebratory event. Rozemyne reflects that it feels like a "sports festival or a cultural festival".

It is the only time adults (besides attendants) are allowed to visit the Royal Academy during the school year. The Aubs of each territory, as well as the ruler of Yurgenschmidt, are all in attendance. Other nobles may visit if they are the relative or escort partner of a graduating student.

In previous years, the ditter matches at the tournament were played using treasure-stealing ditter rules. However, due to the loss of manpower following the Sovereignty civil war, students began playing the faster and simpler version of speed ditter.

Performance in the Interduchy Tournament has a huge influence on whether a student is chosen to join the Sovereignty, as well as their position in their home duchy after coming of age .Lesser duchies and those with fewer nobles are at a disadvantage, since they have no choice but to use all their players rather than their best players.

During the tournament, both scholars and apprentice scholars showcase their research from the past year. Since Rozemyne's entry into the Royal Academy, Ehrenfest's research topics have included:


 * A model of a drivable highbeast (shumil design).
 * Professor Hirschur's research into the magic circles on Schwartz and Weiss.

The Interduchy Tournament is seen as a time to socialize and gather information on new trends and fashions. Because it takes place at the end of winter, shortly before the Archduke Conference in spring, nobles can gauge interest and form the foundation for business deals that will be solidified later.

The primary duty of apprentice attendants is to serve visitors who visit their home duchy's representatives, push trends and "lavish guests with excellent hospitality". However, lesser duchies rarely have visitors, making it harder for their attendants to demonstrate their skills.