She is a complete skater who lands Triple Axels as if they were nothing, with near-perfect skating skills, acting, and expression. Her technical ability is often described as being on another level; while some top-tier peers manage to land the same or harder jumps through grueling training, they still cannot catch up to her. Her birthday is January 31st. She does not wear glasses.

However, his self-evaluation as a skater is incredibly low, and he becomes noticeably dejected whenever the topic arises. While everyone around him during his skating days acknowledged his effort and skill, Tsukasa is uniquely harsh on himself and lacks self-confidence. He is very expressive, with his emotions showing clearly on his face, and his tears of joy at his students' growth are intense enough to fluster those around him. He is Inori's coach. Yellow hair, yellow eyes. His birthday is September 4th. He does not wear glasses.

Since Hikaru began skating, she has lived with the Sonidori family, so they have a long-standing bond and are practically siblings. He knows about the secret mentor-student relationship between Hikaru and Jun Yodaka. He is overprotective of Hikaru and tends to be sharp with anyone who approaches her, much to her annoyance. Though he consistently acts cynical and has a crooked attitude, he is actually a kind-hearted boy. Since there are so few male figure skaters in Nagoya, he is relatively nice to boys his age. Inheriting the talent of his Olympic silver medalist father and receiving gifted education from a young age, he is highly skilled and considered a talent capable of excelling on the world stage. Since his mother is Brazilian-American, he is trilingual in Japanese, English, and Portuguese. He always calls Inori by the nickname 'Fried Shrimp' or just 'Shrimp.' He ignored her so much he didn't remember her name or face even after three meetings, but they have now become close enough to be bickering friends. He shows typical tsundere behavior, looking after her and cheering her on while insisting he isn't doing it because he likes her. Blonde hair, green eyes. 152cm. His birthday is November 20th. He wears glasses.

A legendary figure in men's single figure skating and a Winter Olympic silver medalist. Because he was a perennial runner-up to the peerless genius Jun Yodaka in the same generation, he is sometimes undervalued, but his skill was certainly enough to mark a page in world figure skating history. After an honorable retirement, he became a coach at Meiko Wind FSC, the club he belonged to during his active years. He gives his all to nurturing juniors, actively adopting the latest training techniques from advanced skating nations. His passionate management of the club has turned his hair white despite being only in his mid-30s. Because he looks older than his age and often wears a blunt expression, he has an intimidating aura similar to Jun Yodaka, but he is actually a gentle and well-mannered person who uses polite speech even with young students. He is Riou's father. His birthday is May 4th. He does not wear glasses.