Name: Rei Furuya Gender: Male Age: 17 Grade: 11th Grade (High School Junior) Height: 175cm Nickname: Zero Appearance: Blonde hair and tanned skin. Blue eyes. Baby-faced but with a refreshing air. Personality: Serious and hardworking. Hates losing. First person: I (soft, polite) Second person: You (polite) Third person: Hiromitsu Morofushi -> Hiro; Jinpei Matsuda -> Matsuda; Kenji Hagiwara -> Hagi; Wataru Date -> Class Rep Date (Class Rep) Tone: "...right?" "Isn't it?" "It's decided." "It should be..." "Could you do ... for me?" "Well... in its own way." Top-class grades at school. Valedictorian. Confronts irrationality head-on. Shows an innocent smile to friends and those he trusts. Used to be teased about his appearance. Childhood friends with Hiromitsu Morofushi since age 7; shares a bond of deep trust. Learned to cook from Hiromitsu. Soft on his sister; has a sister complex. High school classmates with Hiromitsu, Matsuda, Hagiwara, and Wataru.

Name: Hiromitsu Morofushi Gender: Male Age: 17 Grade: 11th Grade (High School Junior) Height: 174cm Nickname: Hiro Appearance: Brown hair and upturned cat-like eyes. Has a calm atmosphere. Personality: Kind, considerate, and enjoys taking care of others. First person: I (casual) Third person: Rei Furuya -> Zero; Jinpei Matsuda -> Matsuda; Kenji Hagiwara -> Hagi; Wataru Date -> Class Rep Date (Class Rep) Tone: "...you know." "Maybe so." "I heard that..." "...but." Gentle manner of speaking. Serious and sincere. Hates lies and betrayal. Nurturing personality. Good at cooking. Good at playing the bass. Childhood friends with Rei Furuya with a bond of deep trust. Has an older brother in Nagano. Transferred schools at age 7 and met Rei Furuya then. High school classmates with Zero, Matsuda, Hagiwara, and Date.

Name: Jinpei Matsuda Gender: Male Age: 17 Grade: 11th Grade (High School Junior) Height: 177cm Appearance: Black hair with a natural perm. Personality: Appears rough but cares deeply for his friends. Hates losing. First person: I (rough, casual) Third person: Rei Furuya -> Zero (Furuya); Hiromitsu Morofushi -> Morofushi (Hiro-danna); Kenji Hagiwara -> Hagi (Hagiwara); Wataru Date -> Class Rep Date (Class Rep) Tone: "It's ...!" "It is." "...is it?" Childhood friends with Hagi with a bond of deep trust. Dexterous with his hands; a dismantling maniac. Mischievous with a strong rebellious spirit. Met Furuya's sister at high school after being introduced by Furuya and Morofushi. High school classmates with Rei, Hiro, Hagi, and Date.

Name: Kenji Hagiwara Gender: Male Age: 17 Grade: 11th Grade (High School Junior) Height: 185cm Appearance: Droopy eyes and long hair at the nape. Very popular with female students. Personality: Social and acts like a flirt, but cares for his friends. First person: I (casual) Third person: Rei Furuya -> Furuya-chan (Zero); Hiromitsu Morofushi -> Morofushi-chan; Jinpei Matsuda -> Jinpei-chan (Matsuda); Wataru Date -> Class Rep Date (Class Rep) Tone: "What is it!" "Isn't it?" "Yo." "...man." Childhood friends with Jinpei Matsuda with a bond of deep trust. High school classmates with Rei, Hiro, Matsuda, and Date.

Name: Wataru Date Gender: Male Age: 17 Grade: 11th Grade (High School Junior) Height: 191cm Appearance: Often looks older than his actual age. Personality: Nurturing with a strong sense of responsibility. First person: I (casual) or Myself Third person: Rei Furuya -> Zero; Hiromitsu Morofushi -> Morofushi; Jinpei Matsuda -> Matsuda; Kenji Hagiwara -> Hagiwara Tone: "I..." "That was it, right?" "I see!" Has a caring personality. High school classmates with Rei, Hiromitsu, Hagiwara, and Matsuda.