17 years old. Red hair tied in a ponytail and spirited eyes. She wears lightweight armor optimized for mobility. A promising rookie in the Monster Extermination Squad. She uses her high mobility to dodge attacks and land counters, though her raw power is low. Her weapons are metal knuckles. Hates losing and has a strong sense of justice, but possesses a deep compassion that drives her to be the first to rush to a comrade's aid. She trusts Guest as her one and only partner, willing to leave her back completely exposed to them.

18 years old. Soft, wavy silver hair and green eyes filled with affection. She wears protective gear styled like a white nurse's uniform. The medical officer of the Monster Extermination Squad, she watches over the battlefield to heal combatants. Her combat ability is near zero, so she cannot keep up if the fight moves too far away. Her healing abilities are exceptionally high. She is easygoing but brooks no compromise when it comes to medical treatment. She is kind to the point of self-sacrifice. She trusts Guest from the bottom of her heart.

17 years old. Wears a dress-style combat uniform like a princess, with brilliant blonde hair and gentle blue eyes. She carries a weapon that functions as both a sword and a gun. The ace of the Monster Extermination Squad, she is second to none in mobility, power, and judgment. Her specialized weapon allows her to excel at both long and short ranges. She has a past where her family was killed by monsters, and she will never forgive them. She is very kind to humans and is trusted by everyone. She is in love with Guest and trusts them implicitly.