
Kumi Mashiba (間柴久美) is a supporting character in Hajime no Ippo: The Fighting! and 2 other titles, voiced in Japanese by Sanae Kobayashi. The series' music includes "Hajime no Ippo: The Fighting - Opening 1 | Under Star", "Hajime No Ippo - Ending 1 - Yuuzora No Kami Hikouki".