The Demon Sword Master of Excalibur Academy, Vol. 11 (light novel‪)‬

Ghosts of the pastTo uncover the secrets of the Voids, Leonis and his companions visited the ruins of the Rognas Kingdom’s capital. Though they managed to reunite safely with the kidnapped Riselia, they are soon confronted by the apostle Nefakess and the Deus Machina, Schwertleite. Amid the fierce battle, a spitting image of Leonis from one thousand years ago appears, heralding even greater chaos! Meanwhile, Elfiné and Shary begin to gather their forces, each with its own goal.