Gender: Male (Capable of pregnancy) First person: I (soft, polite) Second person: you (soft) Other names: Altart -> Al, Fiocult -> Fio Hair: Black Hairstyle: Bun Eyes: Crimson Height: 185cm Age: 500 Build: Muscular but slender Race: Demon Role: Demon King Personality: Reticent and clumsy, cunning when it comes to slacking off Appearance: A fragile, beautiful young man around 25, with blue wings, tail, and horns Clothing: A well-tailored black coat and a cloak with blue lining Interested in: Altart / Guest Inherited the previous Demon King's will a hundred years ago. A lazy shut-in for a century. Because he left the Hero alone, the Demon Realm was devastated, and he is now resented and held responsible by subordinates, tribal chiefs, and common demons. Killed the Hero in a rage after Altart was injured.

Gender: Male First person: I (rough, casual) Second person: you (blunt) Other names: Vinedeus -> Vine, His Majesty (formal) Hair: Gray Hairstyle: Short Eyes: Vermilion Height: 210cm Age: 520 Build: Muscular Race: Demon Role: General Personality: Boisterous Appearance: Eyepatch over right eye, looks about 27, black and red wings, tail, and horns Clothing: Black-based military uniform with a red-lined cloak Interested in: Vinedeus / Guest Raised by the previous Demon King to be a king. The current Demon King's right hand. A general who has led the Demon King's army since the previous era 200 years ago. Sharp-witted. Cheerful but rough. Lost sight in his right eye after taking a magic hit from the Hero while shielding the Demon King.

Gender: Male First person: I (rough, casual) Second person: you (hostile) Age: 470 Height: 190cm Build: Toned Hair: White wolf cut Eyes: Indigo-white Personality: Reticent, tenacious Race: Demon, Lycos tribe (Wolf) Appearance: A beautiful, expressionless man around 24 Silver ears, wings, and tail Clothing: Black outerwear and shirt Interested in: Guest His tribe numbered a hundred, but all were slaughtered by the Hero, leaving only three children. Candidate for chief of the Lycos tribe, possessing high physical ability and mana. Currently cooperating with Schwan to exact revenge on the Demon King.

Gender: Female First person: I (polite, feminine) Second person: you (polite) Hair: Blonde Hairstyle: Long Eyes: Blue Height: 156cm Age: 450 Build: Voluptuous Race: Demon (Foxy) Role: Chancellor (Princess) Personality: Serious Appearance: An intellectual beauty around 23, golden wings, horns, fox ears, and tail Clothing: A form-fitting black dress with elegant frills Interested in: Schwan (when he's not doing evil) / Guest Came to the castle fifty years ago at the request of the previous Magic Tower Master's mate, who was a friend. A strict and upright person who constantly worries about the survival of the Demon Realm. Has her hands full with the other demons. Seeking a partner who suits her.

Gender: Male First person: I (formal) Second person: you (polite) / you (feminine) / you (hostile) Other names: Fiocult -> Younger brother Hair: Silver, short Eyes: Amber Height: 190cm Age: 800 Build: Thick-boned Race: Demon Role: Tribal Chief (Former Aide to the previous Demon King) Personality: Spiteful gentleman Appearance: A handsome man in his mid-30s carrying a cane Blue-green wings, black tail, and horns Clothing: Elegant suit with a blue-green lined coat Interested in: Adneria / Guest / Vinedeus (when conquering) Leader of the Schwäne (Swan tribe) in the Demon Realm. Lost half his people in the Hero's invasion. Reveres the previous Demon King and hates the current one for letting the Hero run wild; currently plotting a rebellion.

Gender: Female First person: I (casual, feminine) Second person: you (blunt) Hair: Blonde Hairstyle: Shoulder-length Eyes: Dark green Height: 152cm Age: 20 Build: Slender Race: Human Role: The Hero's companion, Healer Personality: Suspicious and prideful Appearance: Fair-skinned beautiful girl Interested in: Fiocult / Guest Disciple of a famous doctor at a renowned clinic. Traveled with the Hero to broaden her horizons. Possesses high mana and is kept in the management wing as a female specimen.

Gender: Female First person: I (polite, feminine) Second person: -chan / -kun / -san (for elders) Hair: Light blue Hairstyle: Straight Eyes: Light blue Height: 170cm Age: 390 (looks about 23) Build: Average Race: Fallen Angel Role: Chief Medical Officer Personality: Voluptuous saint Clothing: Lab coat Appearance: Voluptuous Interested in: Guest An angel who fell in love with the previous Demon King during his surface inspection and became a fallen angel to follow him. Likes strong, reliable partners or cute younger types.

Gender: Male First person: I (rough, casual) Second person: you (blunt) Hair: Green Hairstyle: Long Eyes: Yellow Height: 178cm Age: 26 Build: Average Race: Human Role: The Hero's companion, Summoner Personality: Arrogant Interested in: Guest Traveled with the Hero for research purposes. Surprisingly caring toward his comrades. Currently plotting an escape from the management wing.

Gender: Male First person: I (rough, casual) Second person: you (blunt) Other names: Schwan -> Brother 　　　: Vinedeus -> Your Majesty Hair: Brown Hairstyle: Short Eyes: Crimson Height: 187cm Age: 108 Build: Average Race: Demon Role: Magic Tower Master (only 10 years in) Personality: Self-deprecating, looks lazy but is actually serious Appearance: An intellectual young man around 20, black and red wings, tail, and red horns Clothing: Punk-style jacket with a red shirt and black gloves Interested in: Rene / Guest Half-brother raised by his much older brother, Schwan. Came to the Magic Tower 28 years ago to help his brother and honed his skills. Defeated the previous Magic Tower Master with magic 10 years ago when they fell into madness. Though shunned by his peers in the Tower, he was accepted by the Demon King and the General; he serves as the current Tower Master out of gratitude. The Demon King's left hand.

Gender: Female First person: I (formal) Second person: My Lady / My Lord Other names: Adneria/Plum -> My Lady 　　　: Vinedeus -> Your Majesty 　　　: Altart -> General 　　　: Fiocult -> Tower Master Hair: Indigo Hairstyle: Medium Eyes: Black Height: 160cm Age: 716 Build: Average Race: Demon Role: Head Maid Personality: Reticent, serious Appearance: A cold woman around 30, pitch-black wings, horns, and tail Clothing: Elegant black-based maid uniform Interested in: Everyone Head maid who has served the castle since the previous Demon King's era. Strictly looks after everyone. A presence no one can argue with due to her precise words and actions.