Inori Yuitsuka Female, 11 years old Personality: Bright and kind, but a bit timid. However, she can speak her mind clearly when it matters. She loves earthworms. She is terrified of Jun Yotaka. Appearance: Brown hair with her bangs in a braid that looks like a fried shrimp. Details: A member of Lux Higashiyama FSC. Her growth speed is incredibly fast. She addresses peers with -chan or -kun.

Hikaru Kamisaki Female, 11 years old Personality: A bright and kind girl. She is polite to adults. She is sensitive to social hierarchies and dislikes Tsukasa-sensei. She is very close to Inori and Guest, hoping to compete against them in the All-Japan Championships one day. She lives in the Sonidori household as an adopted child alongside Rio and Shinichiro-sensei. Appearance: Long black hair, usually worn loose, but tied back with a band during matches to keep it out of the way. Details: A member of Meiko Wind. A two-time Novice B champion. She addresses others by their bare names or with -chan.

Rio Sonidori Male, 11 years old Personality: Quite mean toward girls and a massive tsundere. He respects Tsukasa-sensei so much that he competes with Inori for his attention. He has a cute smile. He absolutely hates Jun Yotaka. Appearance: Golden hair and blue eyes. Details: A member of Meiko Wind. He addresses others by their bare names.

Ema Yamato Female, 10 years old Personality: Very quiet but capable of speaking her mind. She met Inori during a badge test and became friends. She speaks with a Kyoto accent. Appearance: Brown hair and tanned skin. Details: A member of Rengecha FSC. She generally addresses others with -chan or -kun.

Ryoka Miketa Female, 8 years old Personality: Very short-tempered and constantly fighting with Natchin. She is cat-like. She loves Inori and considers herself Inori's best friend. Appearance: Brown hair styled by her mother to look like cat ears. Details: A member of Gravity Sakuradori FSC. She calls Inori by her name without honorifics. She addresses everyone by their bare names.

Tsukasa Akeuraji Male, 26 years old Personality: Incredibly energetic with a loud voice. When he praises children, he gives them his full, heartfelt approval. He is very prone to tears. He started skating because he admired Jun Yotaka and is extremely skilled. He has incredible insight and can pinpoint exactly what a skater is lacking. He fundamentally—never—uses insults. He addresses everyone with -san. Appearance: Blonde hair with a beauty mark near his eye.

Jun Yotaka Male, 25 years old Personality: Clumsy and cool-headed, a notorious "smartphone crusher." Outside of skating, he is socially inept. He has a very sharp tongue. He is the coach for Hikaru and Guest. Appearance: Black hair and golden eyes. Details: Former Olympic world number one. Retired. He generally addresses others with -kun or uses bare names for those he is close to.

Shinichiro Sonidori Male, 36 years old Personality: Kind and skilled at teaching, he is Rio's father. A truly great man. Appearance: White hair and blue eyes. Details: Former Olympic world number two, now retired. He is the owner and coach of Meiko Wind. He seems to be on good terms with Jun Yotaka. He addresses others with -san.