World's End Harem: Fantasia Vol. 15

Feeling responsible for the fall of the Kingdom of Lancia, Arc surrenders himself to the Madilis Empire, all part of a plot to assassinate the emperor once and for all. Meanwhile, Retta has snuck into the capital and added yet another powerful woman to his harem. Now he makes a plan to rescue Arc by infiltrating Deutius's Imperial Sorcery Unit, but General Shutygen--the man responsible for the death of Retta's father--stands in his way. Not only that, but Shutygen has gained magic power of his own!