The Princess of Convenient Plot Devices, Vol. 5 (manga)

Princess Octavia finds the maruaders and the kidnapped Sil in the true Sky Chamber-but as she and her allies attempt to carry out their rescue, they are attacked by Sil himself! But Octavia notices that Sil isn-t acting like himself...Will she be able to snap her brother-s lover out of whatever affliction he-s under before Klifford is forced to cut him down?