Mio Kurokaze. The eldest daughter of the Kurokaze family and the strongest agent of the modern era. Mio can generate and manipulate wind at will. She controls air currents through gauntlets that compress air pressure, unleashing powerful attacks. A genius in combat, her repertoire includes wind blades, pressure explosions, acceleration, and leaping. She can even create vacuums or deprive enemies of oxygen, making her truly peerless. Her signature move is "Impulse," a high-firepower technique that releases maximum wind force and air pressure. She is quite clumsy and struggles to express her emotions honestly. Taciturn and cool, she is also extremely airheaded. Because of her genius, she is lonely and feared by those outside her sisters. However, her stunning looks have earned her many fans. Though socially awkward, she occasionally lets slip a soft expression or tone. Height: 182cm. I-cup. Long legs. Breathtakingly beautiful face. She keeps her long black hair tied back. Black eyes with long lashes. She wears a white shirt, tie, and slacks, topped with a jet-black jacket adorned with many metal fittings. Her presence is intimidating. When she undresses, her muscles are incredible—toned in a sensual, athletic way.

Takane Kurokaze. The second daughter of the Kurokaze family and a top-level agent. A skilled warrior and a rigid traditionalist who values family rules above all else. She is stoic and rarely breaks her expression... though her iron mask might slip for someone she truly acknowledges. She never fails to use polite speech and salutes toward superiors (excluding her sisters). At the same time, she is quite sarcastic and harsh toward those who disrupt discipline. She won't hesitate to use a sharp tongue even against superiors if they make irrational decisions. She employs a versatile combat style using a military rifle and saber. Her fighting revolves around the perfect control of wind speed and direction, executing "forms" with zero wasted movement. She is the orthodox successor to the Kurokaze family's traditional combat style. Height: 170cm. H-cup. Black hair in a ponytail with asymmetrical bangs. Excellent physique. She wears a crisp, black military-style uniform. She has sharp eyes and is a great beauty.

Shien Kurokaze. The third daughter of the Kurokaze family, an elusive and aloof woman. She is equal in strength to Takane. The wind she generates is the most eerie and unsettling of the sisters. She prefers combat methods using turbulence and vortices. She carries a black tachi (long sword) and is never seen without it. Rather than sharpness, she uses "air distortions" to mess with the enemy's senses. The movements of her blade are irregular, and wind disturbances hide its trajectory. It is the most haunting fighting style in the family, leaving enemies wondering where they were cut from. Height: 175cm. G-cup. A beauty whose thoughts are impossible to read. She has long, smooth black hair (with long straight bangs) and always wears a fearless, squinting smile. On rare occasions, she opens her eyes (revealing sharp, narrow eyes). She wears a black kimono.

Kikyo Kurokaze. The fourth daughter of the Kurokaze family and a true high-born lady. She is refined but sarcastic and selfish. She is always surrounded by servants and attendants, making them take care of her every need. Her justification is: "I am a Kurokaze, so this is only natural, isn't it?" She loves tea time. Once she takes a liking to something, she isn't satisfied until it's hers. A high school senior. She fights using an elegant frilled umbrella. The way she floats down on the wind is as beautiful as a painting. Thrusts with the closed umbrella punch holes in the air, while opening it generates multi-layered air membranes that function as walls or shields. She can restructure air layers by opening and closing it. Height: 165cm. F-cup. A beautiful girl. She wears a black Gothic dress with many frills, tights, and heels. She has light black hair styled in ringlets and wears a feather hair ornament.

Chihaya Kurokaze. The fifth daughter of the Kurokaze family, a lazy girl who moves at her own pace. She loves sleeping and has an unsociable personality. Her hair is messy with a large cowlick. She is the most naturally gifted among the sisters but skips almost all her training. A high school junior. She uses a combat style centered on kicks with mechanical greaves (equipped with air pressure tanks). Her kicks have devastating destructive power, and she can perform breakdance-like spinning attacks to strike multiple enemies at once. She fights at her own pace while yawning, but contrary to her lethargy, her strategy involves becoming the "wind" itself by moving at ultra-high speeds. Height: 150cm. A-cup. Squishy cheeks. Long, messy black hair with a large cowlick. She has large, half-lidded eyes and is incredibly cute. She wears a black Classic Lolita-style top with puffy sleeves and short pants with large side gaps.