Hozumi Chiyohara (Polite) A pure-hearted girl devoted to manga. Shuto Tokyo (Dorm Head, "...right?") The leader of the Prefecture Boys and the class representative. Usually cool-headed, but possesses a warm-hearted, passionate Edokko spirit. Sou Saitama (Vice Dorm Head, "...you know?") From Tokyo's bedroom community; he wears a hoodie and always looks sleepy. He has a faint presence, but his true face is...?! Midori Gunma A prickly tsundere type influenced by the cold winter winds. Unlike Tochigi's drooping eyes, he has sharp, upturned eyes. Ichi Tochigi A gentle, healing-type boy wearing strawberry earrings from Kenmei-san. He has a twin-like relationship with Gunma. Natsu Chiba ("...right?") A slightly rebellious boy with red hair. Rumored to be a gang leader. He loves dogs and is very attached to the local mascot, Chi-ba-kun. Kai Kanagawa ("...isn't it?") A trendy, stylish boy sensitive to fashion. A bit of a flirt who knows how to handle girls. Is he rivals with Chiba?! Sora Ibaraki (Polite) A brainy boy in a lab coat. He has a mysterious personality like outer space and is very strict about people mispronouncing "Ibaraki" as "Ibaragi."

Aoi Kyoto (Dorm Head) An expert at "ikezu," delivering harsh truths indirectly. He aims to reclaim the capital status given to Tokyo 150 years ago. A tsundere who speaks with a refined Kyoto accent. Haru Osaka (Vice Dorm Head, Kansai dialect) A cheerful, competitive show-off. The class mood-maker who looks great in his takoyaki-patterned T-shirt. Hijiri Nara (Polite) An elementary schooler who skipped grades, inspired by the jumping power of Nara Park's deer. He's cute, but if you make him angry...? Takara Hyogo ("...shall we?") A musical star straight out of the Takarazuka Revue, turning even the hallways into a stage. His uniform is a white prince-style blazer. Jin Mie (Polite) A long-haired boy with a divine aura, fitting for the home of the famous Ise Grand Shrine. He's rarely at school and has many secrets. Shinobu Shiga ("...you know?") A popular internet radio personality. A spy-like boy who works as the school's information broker using tips from his listeners. Nachi Wakayama ("...right?") Known for his trademark sunglasses and a laid-back, panda-like personality. He is the only one the solitary Kyoto truly opens up to.

Shin Yamanashi (Dorm Head, "...right?") A handsome boy who smiles while holding a wine glass (filled with grape juice). A passionate, big-brother figure to everyone. Ko Aichi (Vice Dorm Head, "...mya!") A calculatedly cute boy who ends his sentences with a local lilt. His favorite cat-ear headphones are his trademark. Go Gifu ("...indeed.") A samurai boy skilled in martial arts. He seems cold at first, but he's actually just a kind soul who is bad at talking to girls. Sen Shizuoka ("...right?") A cozy, beautiful boy who looks perfect with Japanese tea. He's laid-back but has an extraordinary obsession with tea production regions. Roku Ishikawa ("...I suppose.") A blonde boy who radiates a glittering aura like gold leaf. His Kaga Yuzen haori matches the pattern of the mascot Hyakumansan?! Yone Niigata (Niigata dialect) A modest, quiet silver-haired beauty. His golden eyes, reminiscent of the Sado Gold Mine, reportedly shine even brighter when presented with white rice. Kuro Toyama (Polite) A shy boy who always keeps his tracksuit zipped up to the top. He is so fair-skinned he practically glows in the dark. Sui Fukui ("...you know?") A happy boy who loves solving mysteries. He's fond of his glasses, which use custom-made frames. Yuki Nagano ("...right?") A refreshing prince who gets along with everyone. Rumor has it he keeps Nagano's famous Nozawana oyaki dumplings hidden in his pockets...?!