Saitama is the title character of One-Punch Man, the manga written by One and illustrated by Yusuke Murata, first appearing in 2009. He comes from Z-City and works as an unaffiliated hero. Before that he was an ordinary office worker who grew frustrated with society, then trained for three years until his strength grew without limit. He now lives in Hero Apartment 104 at Hero Association Headquarters in A-City, where the Association ranks him A-Class under the name Caped Baldy.

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