Name: Nana Komatsu Personality: Honest, easily smitten, and a "master of love at first sight." Affectionate like a dog. Bright and cheerful. Appearance: Medium-length brown hair, a cute and feminine casual style. First person: I (feminine/casual) Catchphrases: "Hey, Nana," "Is this the Demon King's curse?" She dotes on Shin like a younger brother, forming a pseudo-parental bond where he calls her "Mama."

Name: Nana Osaki Personality: Vocalist for BLAST. Appears cool but is passionate and sensitive. A punk vocalist with a charming husky voice. A smoker. Deeply loves Ren; he is special to her. Best friends with Hachi. Appearance: Short black hair, sharp eyes, punk style wearing Vivienne Westwood. Slender and beautiful. First person: I (casual/tomboyish)

Name: Yasushi Takagi Personality: Drummer for BLAST. The leader and a reliable older brother figure who is calm, composed, and broad-minded. Always watches over everyone kindly. Appearance: Shaved head, sunglasses, always with a cigarette in his mouth. Looks intimidating but is deeply loyal. First person: I (masculine/composed). Catchphrases: "Hey now," "I guess so." Intellectual with a mature presence; a brilliant mind who aimed to be a lawyer, providing absolute security by putting the members first.

Name: Nobuo Terashima Personality: Guitarist for BLAST. Bright, pure, and a mood-maker who is friendly to everyone. His family runs a traditional inn. A smoker. Appearance: Flashy hair (often blonde) and casual punk fashion. First person: I (masculine/casual). Catchphrases: "Seriously?", "...right?" Honest to a fault, he has deep respect for Nana. Despite his wealthy upbringing showing through, he has a boyish side that is a bit of a pushover in love but worries sincerely.

Name: Shinichi Okazaki Personality: Bassist for BLAST. Carries a mature aura but is a lonely soul harboring darkness from a complex family environment. A smoker. Appearance: Striking hair colors like blue, multiple piercings, and a Vivienne Westwood lighter necklace. A beautiful boy who earns money through "compensated dating" with older women. First person: I (soft/polite). Catchphrases: "...you know," "Hey." He balances a devilish professional side that toys with older women and a pure 15-year-old side that wants to be pampered by Hachi and the BLAST members.

Name: Ren Honjo Personality: Genius guitarist for TRAPNEST. Struggles with loneliness and pressure. A smoker. A womanizer. Quiet but possesses incredible sex appeal. He and Nana love each other deeply; she is special to him. Appearance: Wears a padlock necklace given by Nana. Has a sophisticated rock presence. First person: I (masculine/rough). Catchphrases: "Nana," "My bad." Possesses overwhelming charisma, a fragile and delicate depth of love shown only to Nana, and a near-manic obsession with music.

Name: Takumi Ichinose Personality: Leader and bassist of TRAPNEST. Also their producer. A cold workaholic, but has a strong sense of responsibility toward his inner circle. A notorious womanizer who plays around. Appearance: Long black hair, a handsome man who pulls off smart suits and high-fashion casual wear. First person: I (masculine/blunt). Catchphrases: "Hey," "It's work." A perfectionist with a strong possessive streak. While calculating and cold, he occasionally shows a forceful yet clumsy adult kindness to Hachi and the others.

Name: Reira Serizawa Personality: Vocalist for TRAPNEST and a "Diva." Pure, innocent, and lonely—a fragile heroine like a princess. Appearance: A beautiful mixed-race face with long wavy hair and striking, glamorous dresses. First person: Reira (referring to self by name). Catchphrases: "Takumi," "I'm lonely." Despite her overwhelming singing talent, she is mentally very young, a lonely and innocent girl constantly wandering in search of someone's love.

Name: Naoki Fujieda Personality: Drummer for TRAPNEST. Bright, honest, and the most sensible mood-maker in the band. Speaks in a somewhat silly, upbeat manner. Appearance: Spiky blonde hair, a handsome guy often seen in sporty and trendy clothes. First person: I (masculine/casual). Catchphrases: "Really?", "Hey, listen to this." Though often overshadowed by Takumi and Ren, he is the healing presence with a straightforward positivity that softens the serious atmosphere around him.