Race: Demon (Demon King) Age: Approx. 200 years old Gender: Male Personality: Free-spirited and optimistic. Very childish and a bit impulsive. Height: 158cm Appearance: Pale blonde hair. Red eyes. Has demon horns. Has a baby face and looks like a boy, so he isn't intimidating. Attributes: Dark, Thunder, Fire The one who was secretly playing with Yohhi during the conflict. Now he rules the Demon village as the Demon King. He uses magic casually, but his casualness is not proportional to its power—it's extremely high-output. Because of this, Yohhi and Karuha watch him constantly. He has no self-awareness about it. As a special power of the Demon King, he can turn humans into demons. However, it uses so much mana that the caster can't move for about three weeks, so he rarely uses it. Toward Karuha: Seriously, thanks! I respect you, though I don't know if that gets across! Toward Menrei: I want to spar for real someday! I know you're super strong! Toward Yohhi: Best friends forever! Childhood friends! Looking forward to more! Thanks for everything, really! Toward Asaake: What an energetic prince! Let's be friends! Toward Yukika: Recovery magic is rare! That's awesome!

Race: Demon Age: Approx. 180 years old Gender: Male Personality: A bit of a worrier. A caring, older-brother type. Height: 177cm Appearance: Blonde hair. Purple eyes. Has demon horns. Slightly hunched posture. Has a faint burn scar on his neck. Attributes: Dark, Wood Sagiri's cousin and an executive in the Demon King's Army. A hard worker who helps the overly free-spirited Sagiri. He apparently thought, "If I leave this person alone, it's going to be bad," when he got burned by fire magic Sagiri used while playing around. He can basically do anything reasonably well. However, he has zero housekeeping skills. The other day, he tried to make rolled omelets, but for some reason they exploded and turned into charcoal. There are still some scorch marks in the Demon Castle kitchen from that time. Toward Sagiri: I never know what he'll pull next... so I'm worried. He has the ability, so I do trust him. Sort of. Toward Menrei: She's just as free-spirited as Lord Sagiri, so she needs watching. I can't tell exactly what she's thinking. Toward Yohhi: He is very excellent; I wish Lord Sagiri would follow his example. He has nerves of steel, though... Toward Asaake: He seems to do his job properly, at least. That's wonderful. Toward Yukika: She is good at delicate control. I'd like her to teach Lord Sagiri.

Race: Demon Age: It's rude to ask a lady! (260 years old) Gender: Female Personality: Straightforward and cheerful. But somehow elusive. Height: 168cm Appearance: Pale purple hair. Light blue eyes. Has demon horns. Attributes: Dark, Water She was recommended for an executive position in the Demon King's Army, but it was postponed because she can't do paperwork at all. Her magic is about average, but her physical abilities are simply incredible. Toward Sagiri: He's childish, but you can't underestimate that boy... Still, he's cute, isn't he, Sagiri-kun? Toward Karuha: Isn't that guy too stiff? I'd prefer a lighter mood. I hate being formal. Toward Yohhi: He's got guts. Whether he's indifferent or just fearless. I think he's fine. Toward Asaake: I might not mind sparring with that boy. He seems to have potential. Toward Yukika: So cute! That girl has great taste in clothes, too!

Race: Demon (Former Human) Age: Approx. 135 years old Gender: Male Personality: Quiet and refined. Gentle. Height: 167cm Appearance: Pale green hair. Heterochromia with orange in the right eye and red in the left. Has demon horns. Attributes: Dark, Light The former Prince of the Royal Capital, Cecilus. The one who was playing with Sagiri. Sagiri turned him into a demon. He now lives in the Demon King's Castle. Toward Sagiri: Thank you for everything, truly. I hope we can keep being friends. But please, control your magic properly. Toward Karuha: He is very intelligent. I learn a lot from him. Toward Menrei: She is a strong person. She looks carefree, but she thinks things through behind the scenes. Toward Asaake: He is very studious. His passion might rival Sagiri's.

Race: Human Age: 18 Gender: Male Personality: Boundless stamina. A bit boisterous. Height: 180cm Appearance: Green hair. Orange eyes. Wears a royal mantle. Attributes: Wind The current Prince of the Royal Capital, Cecilus. Because he is active and clear-spoken, he is well-known and trusted by the people. He is the grandson of Yohhi's younger brother. Toward Sagiri: So strong! I want to see more of your magic! Toward Karuha: He seems like someone with a very parental perspective. Toward Menrei: Surprisingly kind! I want to get along with her! Toward Yohhi: I want to be his apprentice! Toward Yukika: The one who's good at magic control!

Race: Human Age: 23 Gender: Female Personality: Ladylike. Kind. Height: 161cm Appearance: Pale light-blue hair. Blue eyes. Attributes: Recovery The top priestess in the Royal Capital, Cecilus. She is skilled at healing wounds with gentle mana. She serves as a liaison between the Demon King's Castle and the Royal Capital and has many connections. Consequently, she is well-informed about rumors. Toward Sagiri: Is it really okay for a Demon King to be like that? Toward Karuha: I can really feel how much of a hard worker he is. Toward Menrei: Even with that light attitude, she's thinking in the background. That's the feeling I get. Toward Yohhi: Deciding to become a demon is a huge decision. He's an interesting person. Toward Asaake: He feels like a classic energetic prince. He's always full of life.