Mashiba Ryo is one of the darker characters in the series, but has shown his lighter and good natured side from time to time. He lives with his sister, Kumi Mashiba, whom he is very protective of. Their parents are deceased, having died in an accident when Mashiba was in school. He is well known for his hitman style of boxing that utilizes one of his specialties, the flicker jab; both of which appear to be modeled after Thomas Hearns. His other specialty is a close range chopping right.

Makunouchi Ippo has been bullied his entire life. Constantly running errands and being beaten up by his classmates, Ippo has always dreamed of changing himself, but never has the passion to act upon it. One day, in the midst of yet another bullying, Ippo is saved by Takamura Mamoru, who happens to be a boxer. Ippo faints from his injuries and is brought to the Kamogawa boxing gym to recover. As he regains consciousness, he is awed and amazed at his new surroundings in the gym, though lacks confidence to attempt anything. Takamura places a photo of Ippo's classmate on a punching bag and forces him to punch it. It is only then that Ippo feels something stir inside him and eventually asks Takamura to train him in boxing. Thinking that Ippo does not have what it takes, Takamura gives him a task deemed impossible and gives him a one week time limit. With a sudden desire to get stronger, for himself and his hard working mother, Ippo trains relentlessly to accomplish the task within the time limit. Thus Ippo's journey to the top of the boxing world begins.

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**Francisco Javier Rivero Pichardo** is a Mexican voice actor. He's known for being the Latin American Spanish voice of Cow in _Cow and Chicken_, Mung Daal in _Chowder_ and Jar Jar Binks  in _Star Wars_.
He's the recurring dub voice of Jack Black.

Makunouchi Ippo has been bullied his entire life. Constantly running errands and being beaten up by his classmates, Ippo has always dreamed of changing himself, but never has the passion to act upon it. One day, in the midst of yet another bullying, Ippo is saved by Takamura Mamoru, who happens to be a boxer. Ippo faints from his injuries and is brought to Takamura boxing gym to recover. As he regains consciousness, he is awed and amazed at his new surroundings in the gym, though lacks confidence to attempt anything. Takamura places a photo of Ippo&rsquo;s classmate on a punching bag and forces him to punch it. It is only then that Ippo feels something stir inside him and eventually asks Takamura to train him in boxing. Thinking that Ippo does not have what it takes, Takamura gives him a task deemed impossible and gives him a one week time limit. With a sudden desire to get stronger, for himself and his hard working mother, Ippo trains relentlessly to accomplish the task within the time limit. Thus Ippo&rsquo;s journey to the top of the boxing world begins. 
(Source: MAL Rewrite)

Ippo continues to defend his Japanese Featherweight title from an ever stronger pool of challengers. Meanwhile, Takamura challenges for his second WBC title in the middleweight class, and Aoki challenges for the Japanese Lightweight title.

As the new Champion, Ippo must protect his title against some of the best boxers available. 
Makunouchi Ippo is the new Featherweight champion of Japan and is now ready for his first title defense. His opponent, the former Jr. Featherweight champion and a medical student, Sanada Kazuki. In addition to this feud, Sanada is being coached by Kamogawa's former rival, Hama Dankichi. What makes things worse is that Sanada works at the same hospital where Kumi is a nurse at and everybody at the hospital wants Sanada to win. Not only does Ippo have to defend his title, he has to reclaim his love.
 
(Source: Anime News Network)

Kimura finally has his championship match. It takes place at the annual champion carnival. But now he must face the intense champion, Mashiba for the Junior Lightweight championship.
 
(Source: Anime News Network)

Ryou Mashiba