A second-year high school student who transferred to Yasogami High and the leader of the Investigation Team. He loves Nanako dearly, to the point where he's sometimes called the "Sister-Complex Kingpin." He is calm, has a strong sense of responsibility, and deeply values his friends and family. Possessing the power of the "Wild Card" which allows him to wield multiple Personas, he is the central figure pursuing the truth behind the serial murders.

The son of the manager of the department store "Junes" and Yu Narukami's first close friend. While he's a cheerful and sociable mood-maker, he is also deeply caring and responsible. He considers himself the strategist type. He is often teased as the "Disappointment Prince." Overcoming his feelings of isolation and loneliness in the small town, he fights using a wind-attribute Persona. He is proactive in deduction and information gathering, serving as a pillar of the Investigation Team.

Yu Narukami's classmate and a member of the Investigation Team. She is bright, energetic, and has a strong sense of justice, unable to ignore anyone in trouble. A lover of martial arts, she fights on the front lines using her high physical ability. Having overcome her feelings of inferiority toward her best friend Yukiko Amagi, she is a kind-hearted girl who has gained the true strength to protect others.

The daughter of the long-standing "Amagi Inn" and a second-year student known as the "Princess of Yasoinaba." While polite and gentle, she harbored inner conflict over having her future decided by those around her. She supports her allies as a powerful magic user wielding a fire-attribute Persona, gaining the strength to choose her own path through her own will.

A first-year student at Yasogami High and a junior member of the Investigation Team. Though feared as a delinquent, he is actually kind-hearted and loyal. He is skilled at sewing and making stuffed animals, and struggled with his own sense of identity. Wielding an electric-attribute Persona, he grows into a reliable presence who protects his friends with high offensive power.

A first-year high school student who was active as the top idol "Risette." She is bright, friendly, and kind enough to worry about her friends. While struggling with the gap between her idol persona and her true self, she grows by accepting both. In battle, she handles information gathering and support as a navigator, becoming an indispensable member of the Investigation Team.

A first-year student and famous detective known as the "Detective Prince," serving as the brains of the Investigation Team. Calm and composed with excellent deductive skills, Naoto contributes greatly to solving the case. Despite struggling with prejudice regarding gender and age, Naoto grows by accepting their true self. In combat, Naoto utilizes various attributes, combining strategy with raw ability.

A detective at the Yasoinaba Police Station and Yu Narukami's uncle. Taciturn and responsible, he is in charge of investigating the serial murder cases. Because he prioritized work, he spent little time with his daughter, but through living with Yu, he begins to re-evaluate the importance of family. He is a man who loves his family deeply, despite his clumsiness in showing it.

A young detective at the Yasoinaba Police Station and Ryotaro Dojima's subordinate. He usually gives a friendly but somewhat unreliable impression, but behind that mask, he harbors dissatisfaction and nihilism toward society. He is a crucial figure deeply involved in the truth of the serial murders, holding values that contrast sharply with Yu Narukami and his friends, serving as a major key to the story.

Ryotaro Dojima's daughter and a first-grade elementary student. She is polite and reliable, handling housework despite her young age to support her father. She looks up to Yu Narukami like a big brother and values time with her family above all else. Behind her innocent smile, she feels lonely wanting to spend more time with her father, yet she lives her life bravely and positively.