পর্ব 1: সাইটামা তাঁর অপরাজেয় ওয়ান-পাঞ্চ হিরো শক্তির পরেও অর্থহীনতার বিষয়ে চিন্তা করেন

Saitama is a guy who's a hero for fun. After saving a child from certain death, he decided to become a hero and trained hard for three years. Though he's now so strong he can defeat any opponent with a single punch, lately he feels as if, in exchange for overwhelming power, he's lost something even more important. (Source: Daisuki)

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