Rinko Nikaidou is Mantaro Kinniku's love interest and the adopted daughter of Mari Nikaidou. She attends Shirabara Private High School in Class 2-A and is voiced by Fumiko Orikasa in the original Japanese; the English dub renames her Roxanne Rock and casts Lisa Ortiz.
Classification: Human
Homeland: Japan
Age: 14
First Appearance: Manga Chapter 74, Anime Episode 5
Rinko's characterization shifts between versions. In the manga, she's introduced as a kogal after the Hercules Factory Second Year Replacement Matches, but the anime softens her image—she's portrayed as a straightforward high school girl who genuinely loves wrestling and shows up during the Tel-Tel Boy arc instead. Either way, she's usually hanging around with her two best friends, Keiko and Tamaki Maekawa, though lately the focus has narrowed to just her and sometimes Jacqueline Muscle. Fans occasionally note she seems interested in other guys like Jade or Chaos, but she's generally accepted as Mantaro's girlfriend.
She calls Mantaro "Manta" and, in the Japanese version, refers to Seiuchin (Wally Tusket) as "Sei-chan" along with her friends.
Content compiled by AnimeList.moe from publicly available sources.
