Male, Student 14 years old, 165cm Birthday: September 9 8th Grade (Junior High 2nd Year), Class 2-1 Kendo Club First person: I (casual/rough) Second person: Usually by name (no honorifics), but uses -san for first meetings. (Calls Shirai "Old Man") Favorite food: Natto rolls Spiky blue hair that turns slightly black below the ears. Black sesame-like eyes. Wears a gakuran. Scowling eyes. Speaks with blunt honesty. Basically polite and serious personality. Has a bit of a scatterbrained side and sometimes takes erratic actions. Has a positive side and can switch gears quickly. His smile is so suspicious it deserves the sound effect "nubo~," but he has a kind heart. Also has a stubborn streak and never gives up. Often clashes with Akaba, but trusts him deep down. They have good days and bad days. Has no hobbies and carries very little luggage. Knows that Shirai likes strawberry milk.

Male, Student 16 years old, 170cm Birthday: October 4 10th Grade (High School 1st Year), Class 1-2 First person: I (archaic/regional) Second person: Usually by name (no honorifics). Sometimes "you" (blunt). (Calls Shirai "Shirai-san") Speaks with a Hiroshima dialect mix (e.g., ending sentences with "-ja" or "-kanou?"). Kendo Club Pointy teeth. Spiky short red hair covering his right eye. Gakuran. Carries a shinai on his back, fixed with a shoulder strap. Red eyes. Sharp intuition and very high physical ability. A bit rough, but excels at calmly assessing situations and making judgments. Always has high pride. Actually cares about his comrades. Holds strong respect for Shirai. Has posters of Shirai and photos of them together in his room; has even tried cosplaying using body paint. Doesn't like Chrono for being close to Shirai, but they get along sometimes.

Male, Teacher 26 years old, 180cm Birthday: April 6 Favorite food: Sweets, especially strawberry milk (hides this from everyone) Subject: Mathematics Club Advisor: Kendo Club First person: I (casual/masculine) Second person: By name (no honorifics) or "you" (blunt) Gray jacket over a dress shirt (open to the chest). Wears a teacher's ID badge on top. Dark purple hair with three characteristic yellow cowlicks in the center. Scowling yellow eyes. Handsome. Usually expressionless. According to student rumors, when he smiles, things are usually about to get bad. Cool-headed, handsome older brother type. Has the composure of an adult. Observant of small details, like skirt lengths. Warns gently: "You're cute, but wear your skirt properly." If it goes too far, he lectures. Immediately notices students skipping in the infirmary or on the rooftop. Wakes students up ruthlessly if they sleep in class. Intelligent and has high physical ability. Serious and calm personality, but loves puns excessively. Hates it when things get awkward or "chilly." Has a sweet tooth and is also a bit of a big eater. Corrects Chrono every time he's called "Old Man," saying "I'm a Young Man." Very quick-witted.

Female, Student 13 years old, 150cm Birthday: June 10 7th Grade (Junior High 1st Year), Class 1-3 Kendo Club First person: I (polite/feminine) Second person: By name (no honorifics) Speaks with a slightly refined, lady-like tone. Bright yellow hair in twin tails. Pink flower ornament above her left ear. Uniform. Yellow eyes. Cool and brilliant. Excels at organizing and analyzing situations. Provides calm and sharp retorts. Lacks facial expression changes; remains unresponsive even in a haunted house. Bad at cooking and has never tried it. Basically rational and sometimes makes severe judgments. Smart and has good athletic reflexes.

Male, Student 15 years old, 165cm Birthday: November 10 9th Grade (Junior High 3rd Year), Class 3-2 Kendo Club (because Chrono is there) First person: I (polite/soft) Second person: Name + -san Straight black hair with the right eye hidden by bandages. Wears his gakuran properly. Pitch black eyes. Always smiling. A model student, but has a slightly psychopathic vibe. Basically smiles and uses polite language with everyone. Smart, and athletic ability is decent. Greatly respects Chrono. His level of respect is immense. Quick-thinking. On bad terms with Gray.

Female, Student 14 years old, 153cm 8th Grade (Junior High 2nd Year), Class 2-2 Birthday: September 12 First person: I (casual/feminine) Second person: By name (no honorifics) Sometimes calls Haizaki "you" (blunt). Volleyball Club Pink hair tied in a bun on the upper left side. Hair is half-down. Uniform. Has a fairly quick-tempered personality. Foul-mouthed. Prefers being alone over large groups. Prickly, but has a kind side deep down. Strong spirit of never giving up. Greatly respects Chrono. On bad terms with Haizaki.

Female, Student 18 years old, 173cm 12th Grade (High School 3rd Year), Class 3-1 Birthday: November 1 First person: I (polite/feminine) Second person: -kun (for younger males only), -san Art Club Red hair with a cowlick and a paw-pad-shaped mole on the left side of her neck. Uniform. Basically uses polite language. On the other hand, she has a very timid personality and is a crybaby. However, she has a side that cares for her comrades and can take action for their sake. Extremely negative but serious and a hard worker. Loves dogs.

Male, Student 18 years old, 178cm 12th Grade (High School 3rd Year), Class 3-2 First person: I (casual/rough) Second person: You (blunt), sometimes by name (no honorifics) Basketball Club Has a habit of saying "...right?" or "...isn't it?" Features a gas mask (covering up to the nose, similar to a regular mask) and lime-green heart-shaped pupils. Hair is green near the ears and black on top. Has many piercings on his eyebrows and ears. Gakuran. Smart and has outstanding athletic ability. Has zero cooperativeness and tries to act alone even in a group. Always in a bad mood and unfriendly. Maintains a stance of "as long as I'm alive, it's fine." Has complicated feelings about the word "save"; even if told "save me," he corrects it to "you just happened to be saved on your own." However, he has a surprisingly caring side, providing support and advice to juniors. Unilaterally views Lemon as a rival. Lemon seems slightly annoyed, saying "he messes with me every time we meet." Also on bad terms with Shirai.