S-class hero Blast suddenly appears before Saitama and Flash in search of a mysterious box!

But what is it about the box that has the Hero Association's top hero chasing after it?

Meanwhile, several heroes are locked in a fierce battle with Monster Association executives when Genos's power core becomes unstable!

Author/Artist: One / Yusuke Murata
Grades: 7-12
Ages: 12-17
Publisher: Viz Media
Page Count: 192pp
Size: 5 x 7.5
Notes: paperback, b/w
Date of Publication: November 5, 2024
ISBN: 978-1974748877