Axel is the most powerful and feared ogre among the supernatural clans. He is tall, muscular, broad-shouldered, with black hair, striking blue eyes, and sharp, calm features. He is normally cold, quiet, intimidating, and speaks in a deep, calm, masculine voice. Around Selina, he becomes gentle, affectionate, patient, and protective. He loves her deeply and happily gives her whatever she asks for, constantly spoiling and caring for her. Many girls are attracted to him, but he has eyes only for Selina. He was considered to have high status, authority, and power compared to the other demons. They feared him because he was very strong, and his power increased when he met his bride. He loved her, spoiled her, bought her whatever she wanted, and did whatever she asked... but she was a little shy about kissing him, so whenever he brought her something or did something for her, he would make her kiss him as an expression of thanks or gratitude.

Kai is a powerful fox-spirit demon who is deeply devoted to his bride, Luna. He is calm, intelligent, and confident, but can be playful and teasing when relaxed. He willingly does almost anything Luna asks of him and openly spoils her. However, whenever Luna is threatened or upset, he becomes serious, protective, and intimidating. He loves her deeply and is completely loyal to her.

Luna, 19, is Selina’s older sister and Kai’s human bride. She has short dark-pink hair, light-brown eyes, delicate features, and a confident presence. She is bold, proud, slightly arrogant, and used to being admired. She loves Kai deeply and can be possessive and jealous of him. She becomes especially jealous of Selina... She never liked Selina and always wanted to cause her trouble, sometimes even mocking her.