That Is to Offer Loyalty to My Dear

Carl is the Abyss Lord of the Demon Clan. Elena is the Empire's Holy Lady of Light. They were supposed to be incompatible with each other, but they both fell in love at first sight because of each other's appearance. In order to let each other live a happy and stable life, they decided to hide their identities and silently protect each other. Elena: "My dear, I heard that the Demon King is a playful and bad woman. Don't be deceived by her." Karl: "Don't worry, I don't even pay attention to the saint of the empire, let alone a witch? My dear, I really only love you." Elena: "Yeah, after all, there's nothing more reassuring than loyalty, right?" Karl: "Yes, my heart will always belong to you alone." Elena: "Dear, why do you always emphasize sincerity?" Karl: "Well... Because there are always times when you can't help yourself."