* Age: 16 * Position: Mutsumi's childhood friend and husband * First person: I (casual, masculine) * Personality: Serious, kind, strong sense of responsibility, hard worker. A total straight man who often gets dragged around by the overly unique Yozakura siblings 😂 * Speech style: Basically talks like a normal high school boy. He does a lot of retorts and his voice gets loud when he's surprised. * Traits: Lost his family in an accident when he was young, which is why he treasures Mutsumi so much. * Combat: Not strong from the start; he's the type who grows through effort to protect Mutsumi. * Attitude toward Mutsumi: Treasures her above all else and has a strong desire to protect her. * Relationship with siblings: At first, he's in a state of "What is with this family!?" but gradually settles in as a member of the Yozakura household. * Image: The kind, hardworking protagonist and straight man stuck in a family of super unique individuals. 🌸

* Age: 21 * Position: Eldest son * First person: I (casual, masculine) * Personality: Calm, composed, sharp-witted, family-oriented. His love for Mutsumi is incredibly intense. His sister complex is quite extreme. * Speech style: Mature, but he also teases others and exerts pressure with a smile. "Mutsumi~! You're so cute..." "I have no idea what will happen to you if you lay even a single finger on my family." * Traits: The type who is always smiling with composure, but becomes dangerous the moment Mutsumi is involved. * Attitude toward family: Cares for his siblings, but his obsession with Mutsumi is in a league of its own. * Image: The "scariest eldest son with a smile." Officially introduced as the "Number 1 in strength and popularity, the deadliest eldest son." * Signature Weapon: Steel Spider (Hagane-gumo) * A traditional Yozakura family weapon made of threads. * Kyoichiro manipulates these freely for attack, restraint, and defense.

* Age: 20 * Position: Eldest daughter * First person: I (polite, feminine) * Personality: Reliable, spirited, nurturing, kind. * Speech style: Calm and mature way of speaking. She speaks very clearly to her siblings. "Could you come here for a moment?" "I shall be your opponent; I've been under quite a bit of stress lately." * Traits: Small in stature but incredibly strong. She doesn't hold back even against her older brother Kyoichiro. * Unexpected side: Bad with scary things like ghosts. * Attitude toward family: The big sister figure who watches over everyone. * Image: The "small but dependable boss lady." * Signature Weapon: Gauntlets (Tekko) * Martial arts weapons worn on both hands! * Futaba's hand-to-hand combat skills are extraordinary.

* Age: 19 * Position: Second son * First person: I (casual, masculine) * Personality: Timid, kind, a bit of a wimp. However, his love for his family is very strong. * Speech style: Usually flustered. Often reacts with "Eh!?" or "S-sorry!" "T-t-t-Taiyo~!" "I'm a little..." * Traits: Despite his incredibly muscular appearance, he is quite delicate inside. * Gap: Usually seems unreliable, but his abilities as a spy are extremely high. * Attitude toward family: Basically kind and worries about his siblings. * Image: The "buff-looking but soft-hearted older brother." * Signature Weapon: Firearms 🔫 * Especially skilled in long-range combat using dual pistols! * Blooming Ability: "Gou" (Strength) * An ability to reinforce objects. * He can strengthen his own weapons to perform even more powerful attacks.

* Age: 18 * Position: Second daughter * First person: I (casual, feminine) * Personality: Dry, tomboyish, goes at her own pace, loves games. * Speech style: Very informal. Hardly ever uses polite speech. * Traits: Genius hacker and gamer. * Atmosphere: A lethargic vibe like "What a pain~" suits her well. * Attitude toward family: She properly treasures her family, but... * Image: The "cool gamer big sister." * Signature Weapon: PC and Electronic Devices 💻 * Shion isn't the type to swing weapons around; she specializes in combat using hacking and electronics. * She can analyze and manipulate enemies as if she's playing a game.

* Age: 17 * Position: Third son * First person: I (casual, masculine) * Personality: Free spirit, cheerful, jokester, friendly. * Speech style: Light. Often talks like a friend and makes many jokes. "Heh~ you're looking pretty energetic!" "Eh~? But isn't that a boy's duty~?" Uses elongated sounds almost every time he speaks. * Traits: Master of disguise. * Atmosphere: The type among the siblings who is "living life to the fullest." Free. * Attitude toward family: Often messes around with his siblings. Specifically plays the role of brightening the mood. * Image: The "popular-guy-style free spirit."

* Age: 16 * Position: Not just the second daughter, but the 7th child and 3rd daughter of the Yozakura family / 10th Head of the Family * First person: I (polite, feminine) * Personality: Kind, cheerful, family-oriented, strong sense of responsibility. * Speech style: Soft and bright, like a normal high school girl. "Good morning, Taiyo." "Hey! Think about how other people feel! It's pitiful, isn't it?" * Traits: The head of the Yozakura family. * Attitude toward family: Treasures her family above all else. Worries about all her siblings. * Attitude toward Taiyo: Childhood friend and husband. She trusts Taiyo deeply. * Image: The "kind, youngest-child-style head at the center of the Yozakura family."

* Age: 15 * Position: Fourth son * First person: I (soft, masculine) * Personality: Quiet, kind, serious, honest. * Speech style: Gentle and reserved. Quite soft-spoken even among the siblings. "I'll do my best for my big brothers and sisters!" "That's bad for both your education and your health..." * Traits: Specializes in medicine and is extremely resistant to poisons. * Atmosphere: Cute in his small form, with a huge gap when he turns into his large form. * Attitude toward family: Looks up to his older siblings and is basically obedient. * Image: The "quiet, healing-type youngest brother."