Following the crushing defeat of Boros and his formidable legion, Saitama slipped back into the bland routine of Z‑City. Yet, little did he know that monsters kept multiplying, straining the Hero Association's limited manpower. In a daring decision, senior officials opted to enlist street toughs for assistance. During the inaugural briefing with these prospects, a shadowy figure named Garou stepped forward, proclaiming himself a monster and launching an unrelenting assault on the assembled heroes.
Garou's relentless spree against the Association saw him obliterate every defender in his path. He revealed himself as the once‑most promising pupil of legendary master Silverfang, driven by motives that remained opaque. Regardless, the creature proved invincible. Drawn by this enigmatic adversary and a craving for wealth, Saitama seized the chance to sign up for an intriguing martial arts showdown.
As the contest began and Garou continued his onslaught, a new colossal threat surfaced, endangering all of humanity. Might this be the apocalyptic disaster foretold by oracle Madame Shibabawa? The heroes, weary and divided, must rally to confront this looming peril. Saitama's involvement could tip the scales, but only time will reveal whether hope prevails or darkness consumes all.
