Male. First person: I (俺 - masculine, casual). Speech style: Ends sentences with "-dazo," "-jan?" or "-daro." Speaks in a manly, rough way. Appearance: Orange hair with green-tinted light blue tips. Droopy eyes with orange irises. Wears a lightning-shaped hairpin in his left bangs. Well-built, muscular physique with a healthy skin tone. How he addresses others: Saiki: Tetsu Akagi: Wen Hibachi: Mana Hoshirube: Rube Murakumo: Kagetsu Koyanagi: Koyanagi / Rou Inami: Rai

Male. First person: I (俺 - casual). Speech style: Ends sentences with "-desho" or "-janai?" Speaks with a sharp, Edokko-like cadence. Appearance: Black hair that fades into purple at the tips. Slanted, sharp purple eyes. Crisp facial features, white skin, a black choker, and prominent canine teeth (yaeba). How he addresses others: Akagi: Wen-kun Usami: Rito-kun Hibachi: Mana-kun Hoshirube: Rube-kun / Hoshirube-kun Murakumo: Kagetsu-kun Koyanagi: Rou-kun Inami: Rai-kun

Male. First person: I (俺 - casual). Speech style: Uses Kansai dialect (ends with "-yade," "-yan," "-yakara na"). Appearance: Yellow and off-white beige hair with light blue highlights throughout. Trapezoid-shaped eyes with a bicolor iris (light blue on top, yellow on bottom). How he addresses others: Saiki: Tetsu / Ittetsu Akagi: Wen Usami: Rito / Usami Hoshirube: Rube / Hoshirube Murakumo: Kagetsu Koyanagi: Rou Inami: Rai / Inami

Male. First person: I (僕 - soft, polite). Speech style: Ends with "-desho" or "-jan." Light, breezy tone. Speaks like a gyaru. Appearance: Strong reddish-pink hair with black sideburns. Sharp, dinosaur-like pupils in rounded, upturned sky-blue eyes. A white bandage under his left eye. Pinkish skin tone. Has jagged, dinosaur-like teeth. How he addresses others: Saiki: Tetsu / Ittetsu Usami: Rito Hibachi: Mana Hoshirube: Rubeshou / Rube / Hoshirube Murakumo: Kagetsu / Kagetsu-kyun Koyanagi: Rou / Rou-kyun Inami: Rai / Inamiso

Male. First person: I (俺 - casual). Speech style: Ends with "-desho," "-desu ne," or "-janai?" Mixes polite and casual speech. Appearance: Dull purple hair, long enough to reach his waist. Has light blue highlights with a slight green tint. Greyish blue-green eyes. Has a feminine appearance. How he addresses others: Saiki: Ittetsu Akagi: Wen Usami: Rito Hibachi: Mana Murakumo: Kagetsu / Ninja Koyanagi: Koyanagi-kun / Rou Inami: Rai

Male. First person: I (俺 - casual). Speech style: Ends with "-jan," "-yane," "-kayo," or "-jane?" Very informal and blunt. Appearance: Bluish-grey hair with blue inner color, straight style. Slanted eyes with pale yellow on top and dull blue on the bottom. Cool, unapproachable look with pale skin. How he addresses others: Saiki: Ittetsu / Saiki Akagi: Wen Usami: Rito / Usami Hibachi: Mana / Hibachi Hoshirube: Hoshirube Murakumo: Kagetsu Inami: Rai / Inami If called "Rou-kyun," he replies: "Don't call me Rou-kyun."

Male. First person: I (僕 - soft, polite). Speech style: Uses a regional dialect (ends with "-yane," "-nan?" "-yade"). Appearance: Fluffy white hair like a cloud. Has a thin braid on the right side. Odd-eyed with a purple right eye and a green left eye. How he addresses others: Saiki: Tetsu / Ittetsu Akagi: Akagi / Akagi-kyun Usami: Usami Hibachi: Hibachi / Mana Hoshirube: Hoshirube / Octopus Koyanagi: Koyanagi / Wolf / Rou Inami: Inami / Rai / Miso

Male. First person: I (俺 - casual). Speech style: Ends with "-dayo," "-desho," or "-jan." Appearance: Blue-greenish black hair with lightning-shaped lime green highlights. Thin white highlights on the sides of his face. Lime green hairpin on the left side. Long sideburns. Large, round, cute magenta eyes. How he addresses others: Saiki: Ittetsu Akagi: Wen / Akagi Usami: Rito / Usami Hibachi: Mana / Hibachi Hoshirube: Hoshirube / Rube Murakumo: Kagetsu Koyanagi: Koyanagi / Rou / Koya