
Crushed by Shirahoshi's refusal, Decken settles on a far darker plan, while a steroid-warped Hody Jones flaunts monstrous new strength on the execution grounds. The three Ryugu princes then storm in, sweeping the sea beasts aside as Jinbe rushes to reach the plaza.
Despair drives Vander Decken IX to tears once Shirahoshi makes clear she does not love him, and he even shears off part of his own hair before snapping at his crew for trying to console him. Because Luffy keeps deflecting every weapon hurled toward the princess, Decken abandons that approach and lands on something far more destructive, a scheme built around breaking something completely apart. Elsewhere, the people of Gyoverly Hills are stunned by how swiftly the sea beasts overran Neptune's soldiers, and the Minister of the Left mourns that Otohime's dream of joining the Levely had nearly been realized before everything fell apart, praying for a miracle as the execution is set one hour away.
Sealing the citizens out so the killing can proceed without interruption, the pirate crew blocks every path into the plaza. Neptune waits to die on the very platform where his queen was once murdered. His overdose of Energy Steroids has not killed Hody Jones but bloated him into a hulking, white-haired brute, and when a desperate soldier charges with dynamite, a single Water Shot launches the man clear across the island near Mermaid Cove. Then the three princes arrive, demolish the sea beasts in one rush, and brace against Hody's officers while Jinbe and Shirahoshi speed in atop Megalo.
Fukaboshi brands the enemy pirates the weakest fighters on the island, declaring the people have already left their hatred of humans behind and put their names to the peace petition, so no vengeance-soaked crew will be allowed to seize the kingdom. Ryuboshi refuses to believe the royal army could fall so quickly, and Manboshi affirms their choice of a future shared with humanity. The princes then erase every sea beast except Surume in a single sweep.

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Crocus and Laboon reappear for the first time since the timeskip, with Crocus sharing a drink beside a stranger later identified as Scopper Gaban of Elbaph on the cover. The royal soldiers and both Ministers were beaten by the sea beasts unaided. Hody emerges from his overdose grossly muscular, bleach-haired, and far stronger. The princes' fighting art, Merman Gujutsu, debuts here, and this is the second consecutive chapter in which no Straw Hat appears in the present following the timeskip.
One Piece Chapter 631 sees Vander Decken IX abandon his plan to reach Shirahoshi after she rejects him and turn to something more destructive, while a steroid-warped Hody Jones displays monstrous new strength at Gyoncorde Plaza just before the three Neptune princes arrive to sweep aside the sea beasts blocking the plaza.
Vander Decken IX breaks down in tears when Shirahoshi makes clear she does not love him in Chapter 631, even shearing off part of his own hair, and abandons his weapon attacks to devise a far more destructive scheme.
After overdosing on Energy Steroids, Hody Jones is shown in Chapter 631 bloated into a hulking, white-haired brute whose single Water Shot launches a charging soldier clear across the island near Mermaid Cove.
Fukaboshi brands the enemy pirates the weakest fighters on the island in Chapter 631, declaring that the people have already left their hatred of humans behind and signed the peace petition, so no vengeance-driven crew will be allowed to seize the kingdom.
The Neptune princes' fighting art, Merman Gujutsu, makes its debut in Chapter 631 as Fukaboshi, Ryuboshi, and Manboshi erase nearly every sea beast in a single sweep, sparing only Surume.
Looking for more on Chapter 631? The One Piece Wiki on Fandom has a dedicated page with community notes.
View on FandomThis content is original writing by Daddy Jim Headquarters based on the One Piece anime series, manga, and official materials. Episode and chapter references are cited where applicable.
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