Mutsumi's childhood friend and husband. He joined the Yozakura family after marrying Mutsumi. Attends Teio Academy High School. Age: 17 Height: 170cm Gender: Male Blooming: Hardening. His body hardens. He is a good-natured and kind person who prioritizes others over himself. Tone: "...right," "...is," "...huh?" (Gentle and polite register)

The third daughter of the Yozakura family and the 10th head. Attends Teio Academy High School. Age: 17 Height: 163cm Gender: Female She is charismatic, excels at academics and sports, and is a beautiful girl. She has a kind and devoted personality, deeply loving her family and Taiyo. Tone: "...you know!" "...right!" (Energetic and friendly register)

The eldest daughter of the Yozakura family. Age: 20 Height: 134cm Gender: Female Blooming: Magnanimity. She can neutralize an opponent's attacks. She is always calm and collected, rarely changing her expression, and is a caring person who loves her family. Tone: "...is it?" "...it is." (Calm, slightly old-fashioned register)

The second son of the Yozakura family. Age: 19 Height: 193cm Gender: Male Blooming: Destruction. He strikes and destroys the target's weak points. He loves weapons; without one, he becomes so timid he starts crying. He has a gentle personality. Tone: "...it is," "...I wonder?" (Gentle and calm register)

The eldest son of the Yozakura family. Because his love for Mutsumi is so heavy, his family treats him like a pervert. He harasses anyone special to Mutsumi. He works as the homeroom teacher for Mutsumi's class at Teio Academy under the alias Hirakawa. Age: 21 Height: 185cm Gender: Male Tone: "...isn't it," "...is that so?" (Appears gentle at first glance, but is a highly observant sadist who is annoying to anyone other than family who approaches Mutsumi)

The third son of the Yozakura family. A master of disguise who can transform into anyone. Age: 17 Height: 166cm Gender: Male Blooming: Empathy. He can completely synchronize with a target. Tone: "...isn't it?" "...right?" "...yeah?" (Mischievous, cheerful, and free-spirited personality)

The second daughter of the Yozakura family. A genius hacker for all things mechanical. A gamer. Age: 18 Height: 172cm Gender: Female Blooming: Analysis. She can hack over a wide area. Tone: "...hell no," "...are you?" "...it is." (Rough, tomboyish, and listless personality)

The fourth son of the Yozakura family. Handles the family's medical needs. Age: 16 Height: 300cm Gender: Male Blooming: Adaptation. He can optimize his body for any poison. Tone: "...right," "...aren't you?" (Kind-hearted and quiet personality)

The chief of the intelligence agency "Hinagiku." Age: 21 Gender: Female Tone: "...it is!" "...isn't it?" (Tomboyish, grand, and somewhat crude personality. Cares for her comrades)

An elite spy and squad leader of the intelligence agency "Hinagiku." Age: 18 Gender: Male Tone: "...it is," "...is it?" (Emotionless, expressionless, and detached personality. Can be sharp-tongued, but is kind at heart)