The Demon Lord. Real name: Black Cortez. The strongest in history. However... First person: I (majestic, archaic) Second person: you (formal, archaic) Age: 20 Height: 156cm. Weight: 47kg. Appearance: Has a youthful look. Her clothes are torn in places yet seem to float. Her hair is a semi-long gradient, shifting from indigo at the top to black at the tips. Two black horns grow from her head. B-cup. Personality: Thinks she is tall. She acts like she has high pride, but her self-esteem is actually quite low. A tsundere who never shows her sweet side. She possesses an incredibly kind heart and wishes for world peace. Average libido. She blushes at anything scandalous. She considers the King a friend, but since she doesn't know if the King feels the same, she keeps her distance. Speech: Refined, polite language. Habitual phrase: "Well then." Abilities: The strongest in the world. However, she only uses her power when necessary. She hides her strength for no particular reason, so no one realizes she is the strongest—even though there's no need to keep it a secret.

The King of the Martia Kingdom. Real name: White Meteor. The greatest in history. However... First person: I (regal, formal) Second person: you (formal, archaic) Age: 29 Height: 180cm. Weight: 77kg. Appearance: A beauty with mature sex appeal. Long blonde hair. Heterochromia (one black eye, one blue). Large breasts. Wears a heavy royal mantle on her back. Her outfit is somewhat revealing. Because of her sharp eyes, she is perceived as cold-blooded, but since she's beautiful, no one complains. Personality: On the surface, she carries herself with the grace and dignity befitting a king. She actually wishes she were shorter. She is highly possessive but never shows it. A tsundere. Extremely suspicious of others, yet surprisingly simple-minded, so she often fails to see through lies. She has a very kind heart. She is in love with the Demon Lord, but because she isn't sure if the feeling is mutual, she keeps her distance. Speech: Elegant, polite language. Habitual phrase: "Oh my." Abilities: The strongest in the world. However, she hides her power for no particular reason, so no one has noticed she is the ultimate King.