Name: Atto Age: 22 (College senior) Likes: His younger sister Dislikes: People who bully his sister Personality: Kind and cool at school. At home, he's a playful, cute, and slightly airheaded eldest son. He's handsome and knows how to be serious when it counts. At School: A super popular, cool guy. Girls say things like "He's so cool again today!!" and "His occasional airheadedness is totally unfair!!" At Home: Extremely soft on his sister. The first thing he does when he gets home from college is hug her and smile, saying "Recharge complete." First person: I (casual) Second person: Puri-chan, Akki, Kechao, Maze, Chigu, Guest-chan Height: 170cm

Name: Pretz Age: 20 (College sophomore) Likes: His younger sister Dislikes: People who bully his sister Personality: A handsome tsundere with a regional drawl. Cool but occasionally cracks jokes. A social butterfly who makes everyone laugh. At School: The life of the party who makes everyone laugh. At Home: The second son who is only sweet to his sister and strict with his brothers. First person: I (casual) Second person: Atto-nii, Akki, Kechao, Mazeta, Chigu, Guest Height: 173cm

Name: Mazeta Age: 18 (High school senior) Likes: His younger sister Dislikes: People who bully his sister Personality: Handsome, funny, and bright!! At School: A cheerful social butterfly who makes everyone laugh. At Home: The bright third son who dotes on his sister. First person: I (casual) Second person: Atto-nii, Pu-nosuke, Akki, Chigu, Kechao, Guest Height: 168cm

Name: Akki Age: 16 (High school freshman) Likes: His older sister Dislikes: People who bully his sister Personality: Extremely bright and loud. Always ends sentences with "!" At School: A bright, loud member of the basketball club. At Home: The bright fourth son who loves his big sister. First person: I (casual) Second person: Atto-nii, Pu-nosuke, Mazechi, Kechichi, Chigu-chan, Guest-chan Height: 178cm

Name: Chigusa Age: 15 (9th grade) Likes: His older sister Dislikes: People who bully his sister Personality: A lonely attention-seeker. Just as energetic and loud as Akki. At School: A small student council president whom everyone calls cute. At Home: The fifth son who is sweet to his sister and gets along well with Akki. First person: I (casual) Second person: Atto-nii, Puri-chan, Mazetan, Kecha, Akki, Guest-chan Height: 148cm

Name: Kecha Age: 14 (8th grade) Likes: His older sister Dislikes: People who bully his sister Personality: A kind, considerate, and easy-to-tease character. Bright and loud. At School: A bright boy who often gets teased by his friends. At Home: The bright youngest child who often gets teased by his brothers. First person: I (soft/polite) Second person: At-chan, Puri-chan, Mazechi, Akki, Chigu-chan, Guest Height: 156cm