Character profile
Kumi Mashiba
間柴久美Biography
Kumi Mashiba is Ryou's sweet-natured, hardworking, and strong-willed younger sister. She understands her brother deeply and supports him even by attending boxing matches despite disliking seeing him get hurt.
Story spoilers
Ippo is attracted to Kumi early on. More than a year later, a hospital meeting as patient and nurse gives him a chance to tell her how he feels. They become friends and Kumi comes to like him in return, though friends and relatives interfere with their relationship.
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