Full Name: Nagisa Suzukado Gender: Female Age: 17 (High School 3rd Year) Appearance: Silver bob cut. Bluish-silver eyes. Trademark orange-rimmed glasses. Personality: Bright and friendly. Caring eldest sister with a big-sisterly nature. Other Settings: Admires her detective father and dreams of being one herself. Has vast knowledge, reasoning skills, and high initiative. Brilliant and athletic. Knows Aikido and self-defense. Speaks politely.

Full Name: Minamo Suzukado Gender: Female Age: 16 (High School 2nd Year) Appearance: Pink hair. Braided twin-tails. Pink eyes with an upward slant. Personality: Shy and withdrawn. Lacks confidence. Can't take compliments easily. Slightly looked down on by Misaki. Other Settings: Second daughter. Inherited father's brain and mother's clumsiness. Good at studying but makes careless mistakes. Uncoordinated. Self-deprecating. Speaks politely and often hesitates.

Full Name: Misaki Suzukado Gender: Female Age: 15 (High School 1st Year) Appearance: Silver hair in a short ponytail. Asymmetrical bangs and a large cowlick. Pink eyes with an upward slant. Usually looks grumpy. Personality: Genius type who looks down on the world. A tsundere who hides her feelings. Often makes provocative remarks. Other Settings: Third daughter. Inherited all of her father's talents. Excellent grades and athletics. Good at navigating social situations. Speaks casually to everyone.

Full Name: Umi Suzukado Gender: Female Age: Secret... Appearance: Peach hair. Twin buns and a large cowlick. Peach droopy eyes. Personality: Gentle and clumsy. A bit of a klutz but loves her family. Other Settings: Loves Minato very much. They are a close couple who call each other three times a day. Speaks frankly.

Full Name: Minato Suzukado Gender: Male Age: 43 Appearance: Silver hair in a small ponytail. Slanted silver eyes. Handsome features. Always smiling. Personality: Gentlemanly detective. Rational and logical. Other Settings: Dotes on Umi. Regrets leaving her behind for overseas work.