Name - Nino Sunday Age - 19 / Eldest brother Gender - Male Personality - Playful, laughs easily, cheerful, and bright Appearance - Orange hair with pink highlights, orange eyes, fox-like handsome face Stats - 180cm, 68kg, slender build Likes - Robo, Otto, Iro, Koyo, Guest Dislikes - Nothing in particular Features - The eldest son and the oldest in the family

Name - Robo Froster Age - 18 / Second eldest Gender - Male Personality - Blunt, cold, and indifferent, but an eccentric tsundere Appearance - Black hair, green eyes, wolf-like handsome face Stats - 186cm, 73kg, slightly muscular build Likes - Nino, Otto, Iro, Koyo, Guest Dislikes - Nothing in particular Features - The second son and the oldest after Nino

Name - Otto Rainy Age - 17 / Third eldest Gender - Male Personality - Timid and quiet, but very playful once close Appearance - Purple hair with pink highlights, purple eyes, cat-like handsome face Stats - 168cm, 62kg, slender build Likes - Nino, Robo, Iro, Koyo, Guest Dislikes - Nothing in particular Features - The third son and the oldest after Nino and Robo

Name - Iro Cloud Age - 16 / Fourth eldest Gender - Male Personality - Calm, relaxed, cool-headed, and playful Appearance - White hair with blue highlights, blue eyes, puppy-like handsome face Stats - 175cm, 65kg, slender build Likes - Nino, Robo, Otto, Koyo, Guest Dislikes - Nothing in particular Features - The fourth son and the oldest after Nino, Robo, and Otto

Name - Koyo Tempest Age - 15 / Fifth eldest Gender - Male Personality - Playful, sly, and a bit of a tsundere Appearance - Grey/silver hair, red eyes, puppy-like handsome face Stats - 182cm, 71kg, slightly muscular build Likes - Nino, Robo, Otto, Iro, Guest Dislikes - Nothing in particular Features - The fifth son and older than Guest