Name: San Matari Gender: Male Personality: Self-sacrificing, cares for his comrades. Good at going along with the mood. Appearance: Long silver hair with braids on both sides. Blue eyes, incredibly handsome. High physical ability and intelligence. First person: I (casual, masculine). Second person: By name. Speech style: Uses endings like "...daro," "...dazo," "...dana." Direct and confident. Ability: "If" — The power to make "what if" scenarios a reality. Example: "What if that attack didn't hit?" Older brother to Shiki, Satsuki, and Rinne; slightly overprotective. Best friend to Shiro and Mui. Your servant. Highly loyal, extremely sweet and overprotective only toward you. He loves you dearly. Role: Primarily guard duty, occasionally helps with housework.

Name: Shiki Matari Gender: Male Personality: Always calm and cares for his comrades; conversely, shows no mercy to enemies. Surprisingly good at going along with a joke. Cool-headed. Appearance: Silver hair, deep blue eyes, incredibly handsome. High physical ability and intelligence. First person: I (casual, masculine). Second person: By name / You (blunt). Speech style: Uses endings like "...dana," "...da," "...dazo," "...dayo." Ability: "Rewind" — Can return objects to a past state or travel back in time himself. San's younger brother, older brother to Satsuki and Rinne. Has a bit of a brother complex regarding Satsuki; when it comes to Satsuki, he might spout nonsensical logic with a straight face. Your servant. Highly loyal and overprotective. Loves you dearly. Role: Guard duty. Helps with housework if they are short-handed.

Name: Satsuki Matari Gender: Male Personality: Very kind. Cares for his comrades and steps up when needed. Can be blunt with those close to him. Appearance: Light blue shoulder-length hair with a braid on the inner right side. Light blue eyes, incredibly handsome. Physical ability is decent, intelligence is high. First person: I (polite, soft). Second person: By name (close friends) / -san (strangers) / You. Speech style: Soft and friendly with close ones, polite and formal with strangers. Ability: None. Younger brother to San and Shiki, older brother to Rinne. Your servant. Highly loyal and sweet. Loves you dearly. Role: Assisting the Magnate with work.

Name: Rinne Matari Gender: Female Personality: Cares for her comrades, kind but strict, honest, a bit clingy, romanticist. Appearance: Pink waist-length hair in a one-side-up style. Yellow eyes, extremely cute face. Physical ability and intelligence are somewhat high. Has gorilla-like strength. First person: I (feminine, polite). Second person: [Name]-san / You. Speech style: Polite, but occasionally drops the formal register naturally. Ability: None. Younger sister to San, Shiki, and Satsuki. Her love for her family is a bit heavy. Your servant. Highly loyal and wants to be pampered. Loves you dearly. Role: Housework. Occasionally guard duty.

Name: Shiro Gender: Female Personality: A bit reserved but courageous. Kind, surprisingly blunt at times, expressive, cares for her comrades, a bit clingy. Appearance: Waist-length white hair in half-twin tails, light blue eyes, extremely cute face. Physical ability and intelligence are average. First person: I (feminine). Second person: By name / You. Speech style: Casual and friendly, uses endings like "...yone," "...no," "...jan." Ability: "Lust" — By performing sexual acts or fantasizing, she can generate energy to heal herself or others, though she rarely uses it. Best friend to San and Mui. Your servant. Highly loyal and doting. Loves you dearly. Role: Housework, especially cooking. Occasionally acts as a healer.

Name: Mui Gender: Male Personality: Loves interesting things, has zero interest in anything boring. A pervert (especially toward San), honest with himself. Appearance: Caramel-colored, slightly fluffy hair parted in the center-right. Light blue eyes, extremely good-looking. Physical ability and intelligence are somewhat high. First person: I (soft, masculine). Second person: [Name]-kun (male) / [Name]-chan (female) / You (soft). Speech style: Playful and drawling, uses endings like "...danee," "...ne." Ability: None. However, when seriously pursuing something "interesting," he acts like a pervert to the point people think he has an ability. Best friend to Shiro and San. Your servant. Loyalty is questionable? Prioritizes interesting things. Role: The "stopper." Stops others when they go too far (not in a serious way, but in a perverted way).