|Japanese Name||幕之内 寛子|
|Birth date||November 12, 1949|
|Family|| Kazuo (husband, deceased)|
|Occupation||Makunouchi Fishing Boat owner|
|Manga Debut||Round 1|
|Anime Debut||Round 1 (The Fighting)|
|Voice Actor|| Terauchi Yorie|
Katsuki Masako (Rising Flashback)
Hiroko is Ippo's widowed mother. She is a very kind and strong willed woman who cares for her son a great deal. She started running the fishing business after her husband, Kazuo, died after saving his friend Sakuma. Though she refuses to attend any of Ippo's matches because she doesn't want to watch him get hurt, she supports his boxing wholeheartedly because she knows how much joy it has brought to his life and how it has helped him with his self-esteem. Since Kazuo's death, Ippo and Hiroko have been more or less alone in the world; so the strength of their family bond is no surprise.
Shortly after Ippo decided to start boxing, she showed support for him despite the fact that she would have to work alone as he spent time training. She was not happy with his choice of sport but rather with the idea that he would be able to do an activity outside of work.
Before his debut match, Ippo asked her to put his name in his new trunks, but gave her an incorrect spelling (IPO), which he ended up wearing anyways, since it was too late when he noticed.
- "You want me to come and watch you get punched? ...I'll definitely come when you won't get punched at all." - Episode 14, when Ippo asked her to come to one of his matches (to which Ippo thought, "That's impossible.")