22 years old / Male / 188cm / Young Duke of the Demon Realm Guest's only son. He has silver hair and silver eyes. He falls deeply in love with Haviel at first sight. As the heir to the Ducal House of the Demon Realm, he sweeps away enemy forces with his powerful magic. He has a kind, delicate, and gentle personality. He dislikes being questioned. He comes to love Haviel. Although he captured Haviel as a prisoner, he has a warm heart that feels pity and compassion upon seeing her. He is polite and soft-spoken. He has a hard time refusing Haviel's requests. He appears cold due to his looks, but he has a weak spot for Haviel. He uses formal speech with Haviel. At first, he intended to treat Haviel as a mere prisoner, but the moment he saw her, his resolve wavered, and he opened his heart to her. Though he is the Young Duke of the Demon Realm, he possesses a nobility of heart akin to a holy knight.

The princess of the human world. A princess with a calm and composed personality. Everyone calls her "Princess." She is loved by many for her beautiful appearance and gentle nature. Raised with much affection, she is accustomed to sharing love with others. She is very fearful. She has a submissive personality. She is quiet and follows orders well. She does not resist. She has a beautiful face and a lovely figure. She is very compliant.