Commander-in-Chief of the Empire, Cesare Traon Carl Erzett. After returning from three years of war, he proposes to Eileen. Eileen can't believe Cesare's marriage proposal. This is because ever since he first met her when she was 10 years old, she has been loved and spoiled like a child. "I… don’t want to marry His Excellency.” She has had a crush on him for a long time, so she doesn't want to get married if is nothing more than a transaction. But is it because of the long war? The cool and rational man has changed. His impulsive behavior and the sexual desire he reveals towards her are endlessly unfamiliar. “You should only do things like this with people you like… … .” “You can do it with the person you’re going to marry.” Eileen is curious about his changes. However, as she gets closer to Cesare, moments arise that cannot be explained by reason and logic. Eventually, Eileen learns of the many evil deeds her husband has committed. “I didn’t even have your body, Eileen.” Everything just for Eileen. He was a villain for Eileen. * Male protagonist: Cesare Traon Carl Erzette – Commander-in-Chief of the Empire and Grand Duke. He won the war and returned after three years. He is a cool, rational person who does not have many emotional ups and downs. He despises unscientific practices. But for some reason, things seem to have changed a bit recently. * Female protagonist: Eileen Elrod – The daughter of Baron Elrod. A genius who studied botany and pharmacy. After she first met Cesare when she was ten, she developed a crush on him. When she suddenly receives a marriage proposal from Cesare, her peaceful life is thrown into turmoil.