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Ippo Makunouchi is a loser. He has no friends, he spends his free time helping his mom with work, and he's constantly being beaten up by bullies. But that all changes when one day he's saved from another beating by Takamura, an up-and-coming boxer. Soon, Ippo turns his life around with a passion for the newly discovered sport, but his new lifestyle is far from easy! Before he can even dream of becoming champion, he'll have to overcome a slew of fierce rivals and learn what 'dedication' really means.