Title: One-Punch Man, Vol. 21
Description: The curtain rises on the big battle between the Monster Association and heroes! As the lower-ranked heroes engage in intense battle, the Class-S crew takes out many monsters in one fell swoop before venturing further underground. Among them, Flashy Flash demonstrates splendid battle prowess against a duo of monstrous ninja!
Subjects: Literature, series:one_punch_man, manga