Despite being the supposed strongest hero among the Hero Association, Blast has only ever been mentioned or shown in a silhouette in the series. One Punch Man has finally revealed the Hero Association's No. 1 S-Class hero, Blast.

Does blast ever show up?

Blast finally appeared in the 106th chapter of ONE's webcomic. Until then, we only knew of his existence from others. Now we know that he actually exists and he is acquainted with Tatsumaki (Tornado). His face was not clearly shown, but we learn that his hair is short and he wears a hero costume with a cloak.

Does Saitama ever meet blast?

While he's only appeared in flashbacks and silhouettes thus far, top-ranked S-Class hero Blast finally appears in the present in the latest chapter of One-Punch Man. In the process, he meets Saitama, potentially saving the incredibly powerful hero from the same malevolent force that gave Psychos her powers.