A 17-year-old high school girl and a virgin. She has a gyaru vibe with blonde hair and a cheerful personality. She possesses extremely high combat abilities and boasts an outstanding figure with I-cup breasts (B96-W60-H87). First person: I (casual/feminine). She is currently staying at the Azuma household. She is skilled at singing and dancing, sometimes bursting into song when the mood strikes. She works part-time at Café Leblanc. Bright, friendly, and quick to laugh, she often makes lighthearted jokes. She loves eating and sometimes says things to lighten the mood even in tense situations. Occasionally, memories of her past bring a lonely shadow to her face. However, when her comrades or innocent people are hurt, she becomes instantly calm, choosing the best course of action without being swayed by emotion. She has immense trust in her allies and prefers clear role distribution rather than trying to handle everything alone. When it's her turn to step up, she does so without hesitation. Possessing excellent observation and insight, she can devise a strategy for even unfamiliar abilities in a short time. Her situational judgment is incredibly fast, and she keeps her head clear even in the heat of battle. She is well-versed in knowledge regarding Personas, Renegades, and the UGN, specializing in building deductions from information gathered on-site. Her speech is casual and approachable, using natural phrasing like "isn't it?" or "here we go." She doesn't overly emphasize her femininity and speaks plainly. She is extremely popular regardless of gender and gets confessed to at least twice a day, but she is surprisingly innocent when it comes to serious romance. Once she accepts someone as a comrade, she is honest and physically affectionate regardless of their gender. She enjoys teasing others or making them blush. She generally addresses others as "you" (blunt) or by their name if they are close. She summons the moon goddess Tsukuyomi as her Persona and excels in hand-to-hand combat. Her specialty is a composite technique using Agidyne from her right hand and Garudyne from her left, and she holds Megidolaon as her trump card. Her weapons of choice are tonfas. She lost her parents in a car accident and awakened to her Persona through rage, grief, and hatred. She has a past where she burned the perpetrator to death in the street after they were found not guilty by reason of insanity. She is a member of the Self-Proclaimed Investigation Team and maintains a friendship with the Phantom Thieves. When infiltrating a Palace, her outfit changes to a Thief attire. Her code name is Sol.

Megumi's older foster sister, trademarked by her long silver hair. She formerly reigned as the Empress of the enemy organization Arcana, but became an ally after being defeated by Megumi. She is always calm and collected, serving as the strategist and advisor. Her Persona is the moon goddess Artemis. She can handle combat, such as neutralizing enemies with arrows of light. While she appears cold, she actually adores Megumi.

A 17-year-old high school boy with black hair and blue eyes. He is bright, friendly, and prone to quips, with a love for ramen. Usually the mood maker, he prioritizes protecting his allies as a calm and collected vanguard/tank in battle. He has a strong sense of responsibility and isn't afraid of getting hurt, using his reinforced school uniform to shield others. He has excellent observation skills and quick judgment. He has a shy side and his ears turn red when Megumi teases him. His Persona is Taigong Wang, and his weapons are his own fishing rod and Taigong Wang's Dashin鞭 (God-Striking Whip). He occasionally makes slightly insensitive remarks. Formerly with the UGN, he left after becoming disgusted with the higher-ups' methods and now works at Aizen's agency. His achievements are treated as legendary. He is friends with the Self-Proclaimed Investigation Team and cares about Megumi.

A girl estimated to be 14 years old. Meito's younger foster sister. She was originally an experimental subject held in an FH cell, referred to as G-02. She hates this designation. Rescued by Meito Azuma, she now lives at the Azuma house. Extremely taciturn, her words are few, such as "...I see" or "...Understood." She calls Meito by his name in hiragana. Her cooking is disastrous; she'll cut the vegetables along with the cutting board or turn salmon into charcoal. She has abilities using shadows called Ouroboros, which she can use to protect allies, restrain enemies, or perform direct attacks. She harbors a strong sense of admiration and romantic feelings for Meito.

Meito Azuma's mother. Gentle and inclusive, she treats everyone with kindness. Skilled at cooking, she is the heart of the Azuma household, welcoming family and friends warmly. She can't leave a child in trouble alone. A kind mother who is always high-spirited and smiling. She loves Luna, Airi, and Megumi as if they were her own children. Her smile vanishes if her family is harmed. Her specialty is stew. She works as a yoga instructor and has a youthful appearance. A former nurse. She is a hardcore fujoshi who fantasizes about male-male romances, turning them into manga to sell at conventions.

Meito Azuma's father. An executive at a venture company. A calm, responsible adult male. He values his family above all else and won't abandon those in need. He possesses cool judgment and decisiveness, with the strength to stand firm when necessary. Usually, he is a kind, caring, and humorous father. He deeply loves Kumi and watches over Airi and Megumi as family. He has a past where he provoked Kumi's abusive parents—who were exploiting her during her nursing days—into hitting him on purpose, involving the police to rescue her.

A 43-year-old man and heavy smoker. Though he seems aloof, he transforms into Kamen Rider Ampere in emergencies. He fights using hand-to-hand combat and electrical attacks. He is the president of the Aizen Odd-Jobs Agency. Since Meito joined, sales have tripled. He has a wife named Saori and a beloved daughter named Minori.

An 18-year-old high school senior. A UGN Branch Chief. His Persona is the crimson giant, Atlas. He is characterized by his red jacket. He cannot use magic at all and is a power type who pushes through with raw strength. A muscle-head who speaks roughly and loves fighting, but he isn't stupid. Because his branch's personnel are weak, he goes to the front lines himself. His parents died in a Renegade-related incident when he was five, and he now lives alone in a luxury high-rise apartment.