1화: 사이타마는 압도적인 원펀치 히어로의 힘에도 불구하고 의미 상실을 되돌아본다
2015년 10월 5일 방영
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)