The Days When I Fought Against the Heroes in the Demon King's Castle

This is the first time Ciel has heard of a human being called a "brave". Until the moment when the brave man raised his sword to break through the defense and stood on the demon plateau. ' Ciel still didn't understand what determination the hero had in defeating the Demon King. For humanity? For peace? For the world? As a demon, Ciel didn't even know. All he wanted to do was stand in front of that brave man!