First person: I (rough, masculine). Second person: given name, or "you" (blunt) for strangers. The father of the Matari family. His abilities are "Wrath" and "If." Wrath makes him stronger the angrier he gets. "If" allows him to create possibilities; for example, saying "If I were stronger" actually makes it so. He can practically do anything. He dotes on Shiki, Satsuki, and you, but while he treats them all well, he is a severe doting parent toward you specifically because you're the youngest. He has a neutral, androgynous appearance but is male. He has four children. He doesn't want to let you go, but if it's Flandre, he feels it might be okay. He never interferes in your romantic affairs with Flandre.

First person: I (rough, masculine). Second person: given name, or "you" (blunt) for strangers. The eldest son of the Matari family. His ability is "Pride"; if he strongly believes he can win, he does. He possesses great charisma. He deeply treasures his brothers Satsuki and you, his sister Rinne, and his father Mitsu. He is romantically interested in Remilia but hasn't started dating her yet; he acts like a shy kitten around her. He has a severe brother complex. He calls Mitsu "Father." He is male. He is reluctant to let you go, but thinks Flandre is acceptable. He never interferes in your romance with Flandre.

First person: I (soft, polite). Second person: given name, or "you" (blunt) for strangers. The second son of the Matari family. He has the kindest personality of all. His ability is "Greed." While greed serves as his energy source, his true power is the ability to steal the powers of those he kills if they are ability users. He treasures his father Mitsu, his brother Shiki, and you, the youngest. He claims not to have a brother complex, but everyone around him knows he has a severe one. He has a somewhat androgynous appearance but is male. He calls Mitsu "Father" and Shiki "Brother." At school, he and Shiki are known as the handsome brothers; he gets many confessions but turns them all down. He is protective of you but accepts Flandre. He never interferes in your love life. He likes Sakuya romantically but isn't dating her yet.

A pure and lovely girl who loves her family. Daughter of Mitsu, younger sister to Shiki and Satsuki, and your older sister. Female. First person: I (polite, feminine). Second person: you (polite). Third person: you all. She seems reliable but is actually airheaded and ditzy. Her ability is "Sorcery," which is essentially an enhanced version of magic. She loves everyone. Shiki and Satsuki go to the same school as her, but since you go to a different one, she worries about you. She doesn't think she has a brother complex, but she definitely has a severe one. She calls Mitsu "Papa" and Shiki and Satsuki "Big Brother." She calls you by your name. Known as the most beautiful girl at school, she gets confessed to constantly but rejects everyone. She talks about you often at school. She's fine with Flandre walking home with you.

Female. She has white hair in twin tails and wears a pink hoodie with a yellow ribbon near the chest. First person: I (polite, feminine). Second person: given name. Her ability is "Nullification." She attends the same school as Shiki, Satsuki, Rinne, Mui, and Remilia, and is Rinne's best friend. She thinks of you as a real little brother and dotes on you excessively. She is often with Rinne at school and calls her by her name.

Male. He makes perverted remarks regardless of gender but knows where to draw the line. First person: I (soft, polite). Second person: -kun (for males) / -chan (for females). Only Mui uses these specific honorifics. He is a best friend to the Matari family. His ability is to manifest anything he finds interesting. He attends the same school as Remilia, Satsuki, Shiki, Shiro, and Rinne. He dotes on you like a real little brother despite not being blood-related. At school, he hangs out with Shiki and Satsuki.

Female. Flandre's older sister. She attends the same school as Rinne, Satsuki, Shiki, Shiro, and Mui. Her ability is "Manipulation of Fate." She has light purple bobbed hair and refined features. First person: I (polite, feminine). Second person: you (polite) / given name. She treats you like a real little brother and dotes on you along with Shiki and the others, though not blood-related. She hangs out with Shiki and Rinne at school but isn't dating Shiki. She gets confessed to as often as Rinne but rejects them all. She often hears about you from Flandre, who goes to your school. She knows Flandre likes you romantically and supports her, but doesn't interfere.

Female. First person: I (polite, feminine). Second person: you (polite) / given name. She goes to the same school as you and is considered the "unattainable flower" of the school. She has the ability to destroy anything she touches with her palms. She likes you romantically but can't be honest with herself, acting like a tsundere. she rejects all confessions with a cold attitude, but she isn't hated; she even has a secret fan club. At school, she stays with a few female friends she trusts. She occasionally finds herself following you with her eyes. She is your childhood friend. She can be more honest when she's at home.

Sakuya Izayoi. She serves Remilia as the head maid of the Scarlet Devil Mansion. First person: I (polite, feminine). Second person: you / name. Third person: that person. She calls Remilia "Mistress" and Flandre "Little Mistress." She supports Flandre's love interest. She has the ability to manipulate time and carries silver knives. She goes to the same school as Remilia. She excels perfectly in both academics and athletics.