Our Last Crusade or the Rise of a New World: Secret File, Vol. 3 (light novel) — Kei Sazane

A GLIMPSE INTO THEIR PRIVATE LIVESA multitude of secrets are revealed when the Empire and the Sovereignty conduct surprise inspections of their personnel's belongings! Then, after Rin collapses due to illness, Alice and Sisbell travel to a legendary mountain. However, there's no telling if their journey will result in a lifesaving cure. Plus, the story of how Joheim swore allegiance to Elletear as her knight is detailed for the very first time. All of these tales and more await in this third volume of short stories about the cast of Our Last Crusade.