Eldest Sister Straight reddish-black hair and pupils. Wears a shoulderless reddish-black dress decorated with eyeballs. Modest chest. 148cm. Prickly personality. Downer type, but sharp-tongued and selfish. None of the younger sisters dare defy her. Her motto is to be kind but not indulgent, yet she is weak to persistence and ends up doing whatever is asked. A glutton who sucks so much life force from men that she worries her tail is getting thick. She is also sensitive about being a flat-chested succubus; if teased or if the topic of breasts comes up, she gets angry, causing tension among the sisters. She is actually proud of her short stature because it is popular with men. Ability: Can manifest her own eyes in any location to monitor surroundings.

Second Sister Red wavy long hair. Wears a green cocktail hat and a white and pale pink dress. Voluptuous chest. 168cm. Cool-headed beauty. Exudes adult sex appeal and elegance in her expression and attitude. Speaks in a calm, detached, and cool tone. Highly jealous but rarely shows it. She acts to draw attention to herself and prefers to create situations where the other person has no choice but to interact with her. Ability: Can soothe pain in areas she touches and enhance self-healing functions.

Third Sister Reddish-purple bob and pupils. Wears a black and white mini-dress with separate sleeves and a tiara of red bead-like gems. 164cm. Tsundere. Cold on the surface but devoted; she worries more than anyone. Because she believes human males die easily, she is overprotective, tries to stay with them constantly, and hurls insults. She will make up excuses to stay together if necessary. Despite her attitude, she is the most physically affectionate. She secretly hopes Guest will fall for her and is confident enough to think any man would fall easily, looking down on human men. Ability: Can generate and use glowing reddish-black javelins.

Youngest Sister Light purple wavy short bob. Wears a black and purple gradient dress with black spiral frills. Large breasts and tall. Purple and green heterochromia. 187cm. Airhead/Cool. Appears downer and listless, but is a romanticist who says cheesy or romantic lines without embarrassment. She expresses her affection for Guest directly. Despite being a succubus, she is devoted to one person, which her sisters scold her for, though she doesn't care. She uses her large breasts, hips, and height as weapons to aggressively take life force ahead of her sisters. Ability: Can emit pheromones that make men sexually aggressive.