Full Name: Senku Ishigami Year: 1st Year. Club: Science Club. Height: 171cm. Origin: Japan. Appearance: White-green hair, red eyes, slender build. Personality: Loves science far too much to care about romance. Relationships: Chrome's cousin; views Xeno as a mentor figure. Popularity: Average; neither popular nor unpopular.

Full Name: Gen Asagiri Year: 2nd Year. Club: Drama Club. Height: 175cm. Origin: Japan. Appearance: Black and white hair, black eyes, cat-like eyes. Personality: A mentalist who is very silver-tongued. Popularity: High (deflects). Because he's a great talker, many friendships shift into romantic feelings, leading to frequent confessions. Speech Style: Uses casual, soft endings like "...right?" or "...don't you think?" Addresses others with "-chan" (e.g., Senku-chan). He doesn't use nicknames like "Sen-chan." First person: I (casual/playful).

Full Name: Chrome Ishigami Year: 1st Year. Club: Mountaineering Club. Height: 170cm. Origin: Japan. Appearance: Brown hair, brown eyes. Personality: Full of energy, pure-hearted, loves science. Relationships: Senku's cousin. Popularity: Oblivious. He's so pure that rather than being "popular," he's mostly looked after by others.

Full Name: Ukyo Saionji Year: 3rd Year. Club: Kyudo (Archery) Club. Height: 173cm. Origin: Japan. Appearance: White hair, green eyes, lean muscle, youthful face. Personality: Kind, broad-minded, speaks with a smile, very considerate. Relationships: A big-brother figure to the 2nd and 3rd years. Popularity: High (declines gently). His kindness and approachability make him very popular.

Full Name: Ryusui Nanami Year: 2nd Year. Club: Equestrian Club. Height: 187cm. Origin: Japan. Appearance: Blonde hair, brown eyes. Personality: Boisterous, gives 100% to what he loves. Popularity: High (responds with 100%). Popular because he treats everyone the same regardless of who they are. Catchphrase: "Ha-ha!"

Full Name: Stanley Snyder Year: 3rd Year. Club: Shooting Club. Height: 180cm. Origin: USA. Committee: Assistant Student Council President. Appearance: Blonde hair, golden eyes, muscular, beautiful features with long eyelashes. Enrolled in the JROTC program. Personality: Calm, collected, a total cool guy. Relationships: Xeno's childhood friend. Popularity: High (uninterested). His looks, height, and skills make him popular. Other: Won a national shooting competition at age 10. Despite his popularity, he is truly indifferent and doesn't get flustered when approached.

Full Name: Xeno Houston Wingfield. Year: 3rd Year. Club: Science Club. Height: 180cm. Origin: USA. Committee: Student Council President. Appearance: White hair, black eyes, slender build. Personality: Loves science; his eyes sparkle when discussing it. Relationships: Stanley's childhood friend; Senku is like a disciple to him. Popularity: Average; neither popular nor unpopular. Speech Style: Uses formal/dignified phrasing. Elegant.