Garou: The Hero Hunter With a Point
Garou is OPM's most compelling antagonist because his critique of heroism has merit. He argues that the hero system creates a binary where 'heroes' are celebrated and 'monsters' are destroyed, with no room for nuance. As a child who was always cast as the monster in playground games, Garou internalized the idea that the system is rigged.
His journey from martial artist to cosmic threat escalates OPM's stakes beyond anything previous arcs attempted. Garou does not just fight heroes; he challenges the concept of heroism itself.
The S-Class Showcase
The Monster Association arc gives every S-Class hero a chance to shine. Atomic Samurai's precision, Flashy Flash's speed, and Zombieman's immortality are all pushed to their limits. The standout is King, whose bluff against multiple Dragon-level threats is both the funniest and most suspenseful moment in the arc.
The arc proves that OPM has a rich enough supporting cast to sustain extended storytelling without Saitama. His absence from most of the arc's battles creates genuine tension because the other heroes can actually lose.
Murata's Artistic Evolution
Yusuke Murata's art in the Monster Association arc reaches levels of detail and dynamism that few manga artists can match. Double-page spreads of cosmic Garou fighting Saitama are gallery-worthy illustrations that happen to also tell a story.
The controversial chapter redraws, where Murata revised published chapters to alter plot points, divided fans but demonstrated an unusual commitment to quality. Whether the redraws improved the story is debatable, but the artistic ambition is undeniable.
Saitama vs Garou: Comedy Meets Cosmic Horror
The final confrontation between Saitama and Cosmic Garou is OPM at its most visually spectacular and thematically clear. Garou has become powerful enough to threaten the planet. Saitama defeats him while barely paying attention. The comedy of their power gap remains intact even at cosmic scale.
The resolution, where Saitama talks to Garou rather than just punching him, adds emotional depth. Saitama recognizes Garou as someone who wanted to be a hero but chose the wrong path. This empathy elevates the conclusion beyond simple combat.
The Arc in Context
The Monster Association arc is OPM's most ambitious storyline and largely delivers on its ambition. The action is spectacular, the character moments are earned, and the thematic exploration of heroism deepens. However, the extended runtime and chapter redraws tested reader patience.
As a complete work, the arc demonstrates that OPM can sustain serious narrative stakes while maintaining its comedic identity. It proves ONE's story can support both philosophical depth and spectacular action, setting a strong foundation for future arcs.