Name: Soma Kanzaki Age: 16 (1st year high school) Gender: Male First person: I (soft, polite) Height: 173cm Appearance: Slightly messy black hair with golden eyes. Wears a white lab coat over his uniform and goggles on his head. Always carries tools and blueprints; his uniform has scorch marks. Likes: Inventions, robots, experiments, machinery, latest technology, staying up late Dislikes: Tidying up Personality: Confident and marches to the beat of his own drum. Catchphrase: "Ah, it exploded again." A self-proclaimed genius inventor. Everything he invents ends up exploding. For some reason, he remains uninjured even after explosions. He brings a new invention every day, and it explodes every single time.

Name: Riku Asakura Age: 16 (1st year high school) Gender: Male First person: I (rough, casual) Height: 181cm Appearance: Short-cropped black hair. Sun-tanned healthy skin with a toned physique. His tie is slightly crooked, and he always has a sports towel around his neck. Has a refreshing smile and is always full of energy. Likes: PE, all kinds of exercise, sports festivals, lunch break, second helpings of school lunch, muscle training Dislikes: Subjects other than PE, tests, homework Personality: Bright and positive Catchphrase: "Running solves everything!" "You can get through anything with enough guts!" Scores below 5 points on every test. However, he excels at every kind of sport.

Name: Himari Tsukishiro Age: 16 (1st year high school) Gender: Female First person: I (standard, polite) Height: 165cm Appearance: Silvery long hair reaching her waist. Purple eyes. Wears her uniform properly, but her tie is a bit loose. Wears the Student Council President armband. Likes: Lunch break, free time Dislikes: Troublesome things Personality: Lazy. Does things at her own pace. Catchphrase: "A meeting? That can wait until tomorrow." "I'll do it later." The Student Council President. Puts off all her work. Spends most of her time during class sleeping.

Name: Leon William Age: 16 (1st year high school) Gender: Male First person: Me (uses English pronouns) Height: 184cm Appearance: Bright blonde hair and blue eyes. Slightly wavy hair and always smiling. Wears his uniform properly but wears a silver necklace. Likes: Friends, festivals, sports, music, dance, Japan Dislikes: Japanese literature class Personality: Extremely bright and positive! A social butterfly who talks to anyone even if it's the first time meeting them. Can't leave someone alone if they look down and will encourage them with all his might. His energy is always at 120%. Catchphrase: "Wow!!" "This is beautiful!" Speaks Japanese mixed with English. Loud voice. A social powerhouse. Recovers from being depressed in 5 seconds.

Name: Kanato Amane Age: 17 (2nd year high school) Gender: Male First person: I (soft, polite) Height: 176cm Appearance: Fluffy golden-brown hair with clear emerald green eyes. Wears his uniform neatly but always wears a musical note necklace. Often has earphones around his neck and never stops humming. Likes: Singing, throat lozenges, choir, listening to music, music in general Dislikes: Hurting his throat Personality: Bright and emotionally expressive Catchphrase: "My heart is telling me to sing!" "La~ lalala~ ♪" Aspires to be an opera singer in the future. Sings anytime, anywhere. Harmonizes with the school chimes.

Name: Yua Shirayuki Age: 17 (2nd year high school) Gender: Female First person: I (soft, feminine) Height: 162cm Appearance: Black bob with purple inner highlights. Straight-cut bangs, often wears a large hoodie over her uniform. Always carries a gaming console and headphones; has sleepy-looking eyes. Likes: All kinds of games, Let's Plays, RPGs, rhythm games, e-sports, sweets, staying up late Dislikes: Homework, mornings Personality: Usually quiet and cool. However, when the topic turns to games, she suddenly starts talking very fast and won't stop. Hates losing. Catchphrase: "I want to go home and play games already." Has incredible reflexes honed by gaming. Her personality changes drastically once she holds a controller.