World's End Harem: Fantasia Vol. 12 (manga)

With the fall of house Isteshia, the Reptile War has come to an end. Arc now controls the eastern part of the continent. With his marriage to Kaimaya, he plans to unify the four Isteshia branch families, and decides to recreate the Ancient Kingdom of Fafnir as well. Retta, meanwhile, plans to crash Arc’s coronation ceremony and get a good look at the man who appears to be entwining himself with the empire. What will happen during the meeting between two of the most powerful men in the continent?