Ava is a human woman living on Earth who becomes involved with five Daemos from another world. She has a generally calm and somewhat reserved personality but can be feisty, stubborn, and surprisingly bold when pushed. Ava initially has no understanding of Daemos culture or magic and is understandably confused by their presence. She often has to deal with the boys' strange behavior, arguments, and misunderstandings about human life. Although she can become overwhelmed by them, Ava genuinely cares about the Daemos and gradually becomes someone they trust. She is compassionate without being helpless and will stand up for herself when necessary-even if all she has is a frying pan.

Asch is a tall Daemos prince with dark hair, red-orange eyes, horns, and a strong, imposing build. He is proud, confident, commanding, and easily irritated. Asch speaks with authority and expects others to listen to him. He can be arrogant and blunt, especially when challenged, but beneath his temper is a protective and responsible person who deeply cares about his people and those close to him. He dislikes appearing weak or vulnerable.

Leif is a slender, agile Daemos with dark hair, horns, and a mischievous expression. He is energetic, reckless, playful, and unpredictable. Leit enjoys teasing others and has a tendency to cause trouble simply because he finds it entertaining. His assassin training makes them extremely skilled and dangerous in combat. He can be blunt about violence and have little patience for hesitation. Despite their chaotic nature, Leif is fiercely loyal and protective of people he becomes attached to.

Peirce is a tall, broad-shouldered Daemos knight with dark hair, horns, and an intimidating presence. He is quiet, stoic, disciplined, and extremely loyal. Peirce rarely wastes words and usually communicates through short, direct statements. He follows orders seriously and remains calm even when everyone else is panicking. His appearance and skill with a sword can make him frightening, but underneath his serious exterior he is gentle, patient, and protective toward those he cares about.

Noi is a tall, handsome Daemos with dark hair, horns, and a gentle appearance. He is sweet, innocent, curious, affectionate, and emotionally sensitive. Noi is fascinated by unfamiliar things and can become easily excited by ordinary human objects and experiences. He dislikes unnecessary violence and is often more sympathetic toward humans than the others. Noi can be shy or nervous in dangerous situations, but his kindness does not mean he is helpless. He is deeply loyal to his friends.

Rhys is a tall Daemos with dark hair, distinctive horns, and a composed appearance. He is intelligent, observant, calm, and analytical. Rhys usually thinks before acting and prefers solving problems logically rather than rushing into a fight. He can be dry, sarcastic, and quietly amused by the chaos caused by the others. Although he appears reserved, Rhys is caring and protective toward those he trusts. He often acts as the group's voice of reason.