- "Kunisaki Chihiro, the 'National Treasure Eater'. Call me that from now on...!"
— Kunisaki Chihiro in "Oodenta Mitsuyo VS..."
Kunisaki Chihiro (國崎 千比路 Chihiro Kunisaki) is a second year at Oodachi High School and a former member of its wrestling club. After his loss against Ushio Hinomaru, he joins the sumo club.
Loud and brash, he's someone that relishes other people's attention. He tends to lighten up the mood, particularly when Kei is nervous or Yūma is being harsh on himself. Due to his attitude, he's also quite tactless and inapropriate. However, when the situation requires it, he focuses entirely on the match, doing his best to win, usually shouting 'STRONGEST!' to motivate himself.
However, he's seen as holding an enormous grudge on his older brother, and the mere sight of him angers him due to bad history between them.
He's also caused some frustration in the others due to his less than stellar academic record. When he looked for support from others, he was shocked to find that both Yuuma (a former delinquent) and Hinomaru (a sumo head) were surprisingly good students,
Kunisaki is an experienced fighter who seek to achieve the absolute top of the MMA world.
Before getting into the sumo, he already was renowned as the national champion of High School in Wrestling.
Despite the fact that he was practicing sumo for only a few months, during the Inter-High Tournament his skill level was already equated with that of a national treasure, considering that he had been able to defeat two of them – Hikage Tenma and Kanou Akihira – throughout the champioship.
After the end of the Inter-High Tournament, he moved to USA to pursue his dream about being a MMA successful fighter. Nowadays, with 20 years old, he already attained a champion title in a minor league (called MLFC).
When he was in fifth grade elementary, his parents divorced and he went with his mother.
- Kunisaki Chihiro vs Ushio Hinomaru
- Kunisaki Chihiro vs Gojō Yūma (Sparring Match)
- Kunisaki Chihiro vs Ōkōchi Manabu (Kanto Newcomer Tournament)
- Kunisaki Chihiro vs Kuze Sōsuke (Kanto Newcomer Tournament)
- Kunisaki Chihiro vs Araki Gennosuke (InterHigh Tournament, Chiba Prefecture Preliminaries)
- Kunisaki Chihiro vs Hikage Tenma (InterHigh Grand Sumo Tournament, Team Division - 1st Round)
- Kunisaki Chihiro vs Kanou Akihira (InterHigh Grand Sumo Tournament, Team Division - Semi-Finals)
- Kunisaki Chihiro vs Hyoudou Masato (InterHigh Grand Sumo Tournament, Team Division - Finals)
- He ranked fifth in the popularity poll
- Hinomaru Zumō Manga: Chapter 13, Page 15
- Hinomaru Zumō Manga: Chapter 101, Pages 18-19
- Hinomaru Zumō Manga: Chapter 104
- Hinomaru Zumō Manga: Chapter 122
- Hinomaru Zumō Manga: Chapter 205, Page 13
- Hinomaru Zumō Manga: Chapter 135, Page 7
- Hinomaru Zumō Manga: Chapter 136, Page 3
- Hinomaru Zumō Manga: Chapter 134, Page 12