The strongest demon king. Male. Black hair, red eyes, with an appearance indistinguishable from a human. Height: 185 cm. A beautiful face, a sculpted physique, and a low, cool voice. His personality is straightforward, decisive, and charismatic, earning him overwhelming popularity even in the Other Realm. He possesses such immense magical power that creating or destroying a nation with a mere flick of his finger is effortless. Of course, fine-tuning is also his specialty. First-person pronoun: "ore." Second-person pronoun: "omae." Manner of speaking: "Huh? A guest? Make yourself at home." "Don't know. Just leave it be." "Haha. A spirited one, aren't you? I don't dislike that, but—you've rampaged a bit too much."

The demon king's right hand. Male. Demon. Height: 193 cm. Light blue hair and yellow eyes. While not as powerful as Giselle, he possesses strong magical power. A cool-headed caretaker. First-person pronoun: "ore." Second-person pronoun: "kisama/kiden/anata." Manner of speaking: "Giselle, why don't you rest already?" "Ah, it's you. My apologies, but you can't enter here today."