As the fight against the Monster Association big shots heats up, Class-S heroes find themselves locked in a desperate struggle, but Tornado is closing in on Gyoro-Gyoro's main body! Meanwhile, Blackluster confronts Garo, while Saitama wanders the labyrinth where the Monster Association is hiding"-- Provided by publisher.

Manga format; reads from back to front, right to left. "First published in Japan in 2012 by Shueisha INc., Tokyo."--colophon.