
The 157th chapter of One-Punch Man leans on the mind games around King, as the cadres puzzle over his stillness, Zombieman pins Homeless Emperor, and Black Sperm merges with Golden Sperm into the terrifying Platinum Sperm.
Black Sperm, Golden Sperm, and Homeless Emperor cannot read King's refusal to move. Homeless Emperor explains that King is an outlier with no recorded fighting data and a knack for disabling monsters without touching them, urging the others to stay wary even while holding Tatsumaki and Genos as leverage. When Homeless Emperor readies a huge energy sphere, King asks what a touch would do, and the cadre answers that it would vaporize him.
As the strike nears, King casually warns Homeless Emperor about the loose rubble underfoot. The cadre misreads this as proof King could dodge and retaliate, growing uneasy. King, panicking, blurts out that he is only an ordinary human, which Homeless Emperor terrifyingly takes as evidence his own weakness has been exposed, prompting him to try to kill King before the others notice.
Before he can fire, Zombieman appears behind him, seizing his neck and forcing him down. A delighted Child Emperor sees Zombieman alive and dispatches his messenger bugs, planning to line every monster up for King's Ultimate Hellfire Burst Wave Motion Cannon. Black Sperm, ignoring Homeless Emperor's cry for aid, boasts of 54 trillion cells and sends his clones to fuse with Golden Sperm. Weeping yet joyful as trillions of cells are erased in the merger, he emerges as Platinum Sperm, while Metal Bat closes in on the final lingering clone.
The cadres debate King's mysterious inaction, and his offhand remarks nearly convince Homeless Emperor that his secret weakness is known. Zombieman resurfaces to pin Homeless Emperor down. Child Emperor coordinates the heroes to set up King's ultimate attack, and Black Sperm fuses with Golden Sperm into Platinum Sperm as Metal Bat moves against the last remaining clone.
Released on November 13, 2021, this Monster Association Arc chapter opens Volume 31 and draws on webcomic chapters 73, 74, and 80. Psykos appears on the cover, and Viz keeps the title as Check. The volume bonus page shows Saitama standing resolute amid smoke with his cape flowing.

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Chapter 157 of One-Punch Man is titled "Check," a title Viz keeps unchanged, released November 13, 2021 in the Monster Association Arc.
In Chapter 157, Black Sperm, Golden Sperm, and Homeless Emperor cannot predict King's stillness because Homeless Emperor explains King is an outlier with no recorded fighting data, so they stay cautious and hold Tatsumaki and Genos as leverage.
In Chapter 157, King panics and blurts out that he is only an ordinary human, which Homeless Emperor mistakes for proof his own weakness has been exposed, prompting him to try to kill King in secret.
Zombieman appears behind Homeless Emperor and pins him down before he can strike King in Chapter 157.
In Chapter 157, Black Sperm merges his clones with Golden Sperm, and although trillions of his cells are erased in the fusion, he emerges transformed as the powerful Platinum Sperm.
Looking for more on Chapter 157? The Dragon Ball Wiki on Fandom has a dedicated page with community notes.
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