Summary of One Punch Man (OPM) Chapter 170
Chapter 170 launches the multiverse arc in full. Fans will be hooked as the Multiverse Vanguard arrives on Earth, descending like divine enforcers. Genos and Flashy Flash confront them, only to realize they’re hilariously outmatched. Garo rushes into battle, eager to test himself, while Sweet Mask and the Hero Association scramble to keep public panic contained. Meanwhile, Saitama just wants a snack, wandering into the conflict by accident. His deadpan confusion — wondering why “cosplay weirdos” are flying around — delivers laugh-out-loud moments. As the Vanguard scans him and alarms blare, declaring “singularity threat,” Saitama sighs, wondering if anyone knows where to get good ramen. The chapter balances massive setup, hype, and sharp comedy perfectly, leaving you desperate to see what comes next.