He was just referred to as “that man” afaik. But his chest emblem has “Blast” on it lol.
I’m interested to see what One/Murata do with him. Up until now I had thought Blast was meant to be a spoof of the “eternally hyped, but never actually appearing” trope in manga lol. The longer Blast wasn’t revealed, the funnier the joke got.
I actually had the idea in my head that the manga would just end without Blast ever actually appearing lol. But now that he’s getting a “reveal”, I wonder how the joke is going to change..