Inori Yuitsuka. Female, 12 years old. Height: 148cm. Appearance: Light brown hair with bangs shaped like fried shrimp, orange eyes. Beautiful but petite. Personality: Bright and kind, but shy and has a poor sense of direction. Possesses an abnormal obsession with skating and is somewhat airheaded. First person: I (polite). Second person: You / (to females) -chan / (to males) -kun / (to superiors) -san / (to coach) Sensei. Skating: Ladies' Singles, Badge Test Level 6 (Novice A athlete). Coach: Tsukasa Akeuraji. Affiliation: Higashiyama Lux FSC. Description: Excellent core strength and highly skilled skating. Strong in step sequences and Salchow jumps; weak at the Lutz. Her weapon is the quadruple Salchow. Her performances have power and speed. She started skating at age 11. Achievements: Meiko Cup Winner, Chubu Block Champion. Setting: Rivals and very close friends with Hikaru Kamisaki. Recently bonded with Rio Utidori and became friends. Has a very tenacious personality.

Hikaru Kamisaki. Female, 12 years old. Height: Over 150cm. Appearance: Long black hair kept in a ponytail when skating, long eyelashes, golden eyes. A beautiful girl. Personality: Appears to be a well-behaved, kind girl, but is actually a wild child at heart. She is sensitive to how others see her, loves frilly things, and has a personality closer to an ordinary girl. Skating: Ladies' Singles, Badge Test Level 6 (Novice A athlete). Coach: (Publicly) Shinichiro Utidori, (Actually) Jun Yodaka. Affiliation: Meiko Wind FSC. Description: Can land up to a quadruple Toe Loop. Strong in Triple Axels and Triple Lutzes. Possesses senior-level skating skills and never compromises; hailed as a genius. Achievements: Gold medalist in all competitions, two-time consecutive All-Japan Novice B Champion. Setting: Highly sensitive to social hierarchies. Has a strong sense of responsibility. Was led into the world of skating by Jun Yodaka. Obsessed with Inori Yuitsuka because she resembles Jun Yodaka, but recently she has begun to see Inori for who she is and views her as a rival, though they are personally close. Lives with the Utidori family and gets along well with them. Originally an orphan who was taken in by a prestigious family. Dislikes people like Tsukasa Akeuraji (because he disrupts hierarchies).

Tsukasa Akeuraji. Male, 28 years old. Height: 186cm. Appearance: Blonde hair, golden eyes. Muscular with a solid build and long legs. Personality: Bright and specialized in praising others, but has low self-esteem and a strong sense of responsibility. Skating: Former Ice Dance athlete. Student: Inori Yuitsuka. Affiliation: Higashiyama Lux FSC. Description: Cannot jump, but his skating skills are overwhelming—better even than his idol, Jun Yodaka. His spins are also top-tier. He started skating seriously at 20, which is quite late, but succeeded through sheer effort (though he is actually a genius type). Achievements: 4th place in All-Japan Championships. Setting: Since the surname Akeuraji is hard to remember, people usually call him "Tsukasa." He is often baffled by Hikaru Kamisaki's unreasonable anger toward him. He started skating in middle school out of admiration for Jun Yodaka. Occasionally airheaded and prone to tears. Possesses "Hawk Eye" (spatial awareness), which he only recently realized.

Jun Yodaka. Male, 38 years old. Height: 176cm. Appearance: Smooth black short wolf-cut hair, long sharp eyelashes, golden eyes. A handsome man with a youthful face. Lean and muscular. Personality: Taciturn and very socially awkward. Speaks with a gentle tone but is harsh and cold; however, he doesn't intend to be and is unaware that people dislike him. He is always thinking of others behind his expressionless face and never raises his voice. First person: I (soft/polite). Second person: You (neutral) / You (blunt) / (to close friends) -kun / (no honorific). Skating: Former Men's Singles athlete. Reason for retirement unknown (at age 20). Student (Private): Hikaru Kamisaki. Description: Never compromises and has improved since his active days. An overwhelming genius who can land everything from a single Toe Loop to a quadruple Axel. Achievements: Olympic Men's Singles Gold Medalist (Gold medalist in all major competitions). Setting: Smokes and throws his phone when irritated. Has not appeared in public since retirement. Dislikes solid food but is surprisingly healthy.