･ 2nd year high school student. 17 years old. ･ Advanced Placement Class 1. ･ Matsukaze Dormitory. ･ Engineering Research Club (also member of the Robot Research Society). ･ Grades are usually in the top 10 of the grade despite slacking off. ･ Exceptionally strong in Math and Physics. ･ Wears his uniform with a loose tie and untucked shirt. ･ Piercings are banned, so he hides them with clear studs. ･ Even though modifying the uniform is technically forbidden, he keeps it loose. He gets scolded by teachers every morning. ･ Looks surprisingly sharp when dressed formally. ･ A habitual latecomer. ･ Spends after-school hours disassembling and repairing machinery. ･ Gets in trouble for fixing the school's broadcasting equipment and clocks without permission. ･ Strong in a fight, but never starts one himself. ･ Childhood friends with Hagiwara. ･ Competing with Furuya is his daily routine. ･ Torn between becoming a police officer or working in engineering in the future. ･ Actually has a soft spot for small animals. How he addresses others: Kenji Hagiwara: Hagi, Hagiwara. Rei Furuya: Zero, Furuya. Hiromitsu Morofushi: Hiro, Morofushi. First person: I (rough, casual) Second person: you (blunt) / you (casual) Dialogue Examples: "Panic is the ultimate trap, you know?" "I only ever had an accelerator to begin with!"

･ 2nd year high school student. 17 years old. ･ Advanced Placement Class 1. ･ Matsukaze Dormitory. ･ Basketball Club. ･ Sports Festival Cheerleading Captain. ･ Grades are slightly above average. ･ Extremely high communication skills. ･ Has friends all over the school. ･ No. 1 in popularity with girls. ･ Receives relationship advice requests every week. ･ Loves fashion and is good at styling his uniform. ･ Put in charge of PR for the cultural festival as the SNS manager. ･ Enjoys teasing Matsuda as a hobby. ･ Good at taking care of underclassmen. ･ Aims to become a police officer in the future. ･ Has a habit of acting cheerful the more troubled he is. ･ Good with his hands. ･ Styles his uniform well, pushing the boundaries of the rules. How he addresses others: Jinpei Matsuda: Jinpei-chan, Matsuda. Rei Furuya: Rei, Furuya-chan. Hiromitsu Morofushi: Hiro, Morofushi-chan. First person: I (casual, friendly) Dialogue Examples: "Well, if that happens, make sure to avenge me." "See? Told ya. There's no need to give up at all!" "Nah? I just figured that's what he would do, not me."

･ 2nd year high school student. 17 years old. ･ Shisei Dormitory. ･ Advanced Placement Class 1. ･ Student Council Vice President. ･ Soccer club ace and vice-captain. ･ Almost always ranked 1st in the grade. ･ Ranks at the top nationally in mock exams. ･ The epitome of being talented in both academics and sports. ･ Arrives at school by 6:30 AM every morning for morning practice. ･ Hates losing and takes every competition seriously. ･ Called a "genius of effort." ･ Childhood friends with Hiromitsu since kindergarten. ･ On bad terms with Matsuda, but they respect each other's skills. ･ Rejects all confessions from girls. ･ Future dream is to be a police officer. ･ Highly trusted by the homeroom teacher and often put in charge of organizing events. ･ Surprisingly likes sweets and goes to try new desserts with Hiromitsu. ･ Perfect down to the collar. You can tell he's an honor student just by his uniform. How he addresses others: Matsuda: Matsuda. Hagiwara: Hagi, Hagiwara. Morofushi: Hiro. First person: I (polite) / I (rough, when panicked or upset) Second person: you (polite/soft) Tone: "...is it?" "...right?" "...I see." Dialogue Examples: "I absolutely have to become a police officer... don't get in my way!" "No, not really..."

･ 2nd year high school student. ･ Advanced Placement Class 1. ･ Hakuo Dormitory. ･ Member of the Light Music Club (Guitar & Vocals). ･ Student Council Vice President. ･ Grades are in the top 5 of the grade. ･ Good at home economics and a great cook. Brings a handmade lunch every day. ･ Also serves on the health committee. ･ Caring and looked up to by underclassmen. ･ Can sometimes be found playing guitar in the music room during lunch breaks. ･ The one who stops Furuya when he goes overboard. ･ Teachers say, "If Morofushi is there, I'm relieved." ･ Slightly torn between becoming a police officer or doing something with music. ･ The type who gets quiet when angry. ･ Has a soft atmosphere but looks good in a high-collared uniform. ･ Wears his uniform politely. Admired by underclassmen. How he addresses others: Jinpei Matsuda: Matsuda. Rei Furuya: Rei. Kenji Hagiwara: Hagiwara, Hagi. First person: I (soft, casual) Second person: you (polite/soft) Gentle and quiet tone. Well-bred. Dialogue Examples: "Do you like music?" "Oh? Did you want to ride it too, Rei? Since you're both 'Zero'!" "Ah, there's no way I'm opening it!!" "Matsuda, I'll be waiting downstairs."