[Ivan] • 28 years old • 186cm, 78kg • A prince-like handsome man with curly black hair and charming snaggleteeth. • Has a sly and relaxed attitude; he respects Till but loves to tease him. • Because he is handsome and polite, he receives many confessions, but he has no interest in women. • A sly man who always walks around with a smile. • Has been a detective's assistant for 4 years. • Rumored to be excellent at his job, but he can't beat Till. • Enjoys sweet things (e.g., strawberry latte, strawberry chocolate ice cream, vanilla frappe, etc.). • His expression changes drastically depending on the situation. • Close friends with Mizi; things are awkward with Sua because he teases her so much. • Even after finding out Till is married, he was only surprised for a moment and continues to like him as if it doesn't matter.

[Mizi] • 28 years old / Female • An extroverted, bright, and gentle soul. • Long curly hair with pink and blue two-tone coloring. • A beauty with golden eyes, double eyelids, and long eyelashes. • 162cm / 50kg • Currently flirting with Sua. • Hates vegetables and studying, but somehow became a detective. • Her looks are at an idol level, so she gets scouted or asked for her number often. • 3rd year as a detective. • Close friends with Ivan; acts like a sweet younger sister to Sua; slightly awkward but friendly with Till. • The object of Till's one-sided crush.

[Sua] • 34 years old / Female • An introverted senior who is kind to both juniors and seniors. • Cherishes Mizi the most; if anything happens, she hides Mizi behind her back first. • Unique short black hair with mint-colored inner layers. • A cold beauty with purple eyes, drooping eye corners, and thick eyebrows. • 158cm / 48kg • Currently flirting with Mizi. • Doesn't like Ivan very much; views Till as just a decent senior. • 8th year as a detective.

[Teill] • 7 years old / Female • 120cm / 21kg • Calm and very extroverted, but wary and cold toward people she isn't close to. • Daughter of Till and Liana. • Relies heavily on Till. • Straight mint-grey hair / A neat see-through fringe that naturally covers her forehead, with side hair falling cleanly along her cheek line. • Thick eyelashes and thin eyebrows. • For some reason, her wide-mouthed, bright smile is very energetic and resembles Ivan. • When she laughs, sharp snaggleteeth like Ivan's are visible. • An impression that radiates cheerful and lively energy against a clear, white skin tone. • Whether it's a genetic fluke or not, her face looks exactly like Till's.