One Piece: The Evolution and Impact of Sea Prisms, Explained

One Piece: The Evolution and Impact of Sea Prisms, Explained

Key Takeaways

  • Seastones nullify devil fruits’ powers, challenging pirates’ invincibility and leveling the One Piece playing field.
  • With Pryobloin absorbing sea properties, Seastones weaken devil fruit users by embodying the ocean’s essence.
  • Marine innovation with Seastone technology shifts battle tides, emphasizing control over devil fruit users in One Piece world.

As a seasoned One Piece enthusiast who’s sailed through countless seas and islands, I can confidently say that Seastone has been a game-changer in this grand adventure of pirates and marines. It’s like the Devil Fruits’ Kryptonite, turning even the mightiest sea dogs into harmless kittens with just a touch.


In the realm of One Piece, there’s a unique stone called Seastone, sometimes referred to as Sea Prism Stones or Kairoseki. These stones are exceptionally scarce and can only be found in the land of Wano. They possess an extraordinary ability: they nullify the powers of users who have consumed Devil Fruits. Users of these fruits often believe themselves to be nearly invincible, acting on the assumption that their strength surpasses that of ordinary humans.

In their stubborn belief, these pirates seem nearly unbeatable. Yet, Seastones serve as a crucial factor. They alter the thought process of these narrow-minded pirates, making them realize their vulnerability. Consequently, both Marines and pirates can wield this game-changing artifact to create a more balanced scenario within the world of One Piece.

Origin Of Seastones

The Mystery Behind These Stones

One Piece: The Evolution and Impact of Sea Prisms, Explained

Hidden among these stones lies the unique substance, Pryobloin, which soaks up marine and island clouds, thereby inheriting the characteristics of the sea. This property makes it challenging for those who possess Devil Fruits, as their enemies of the sea, since anything that can absorb the ocean’s traits may also weaken users of Devil Fruits, similar to being submerged in the sea itself.

Moreover, it’s worth noting that these stones are native to the Wano Country, a land renowned for its samurai warriors. Exported from there, this natural resource is utilized in various regions worldwide, contributing significantly to the manufacturing of diverse equipment.

In a similar manner, the appearance of these stones in their raw state remains a mystery, but their unique properties are evident. As previously discussed, Seastones mimic the ocean, causing quite a sensation when submerged. This is why Sea Kings often mistake them for the real ocean. Dr. Vegapunk capitalized on this phenomenon by using it to create marine ships that could navigate safely through the infamous Calm Belt. The Calm Belt was notorious for being treacherous due to a lack of current, hence its name. By coating the undersides of ships with this material, Dr. Vegapunk managed to help these vessels pass through this tranquil part of the sea while minimizing encounters with Sea Kings.

Evolution Of The Seastone Technology

Raw Material To Weapon

In the Loguetown arc, viewers were first introduced to seastone, a material that weakens the powers of Devil Fruit users. Smoker utilized his Seastone Jitte against Luffy, rendering Luffy’s Gomu Gomu no Mi fruit powerless during their one-sided battle. At the start of the series, seastones were primarily depicted in weapons like Smoker’s Nanshaku Jitte, cages such as Crocodile’s, and handcuffs. For instance, seastone handcuffs were used to capture Robin on Enies Lobby, and Ace was also restrained with them during his execution in Marineford. These early appearances of seastone helped fans grasp that even the strongest users would lose their powers upon the slightest contact with a seastone-infused object.

Later Forms Of Development

Over the course of the series, Seastones underwent unique transformations. This was largely due to the brilliance of certain characters. A notable example of this evolution occurred during the Punk Hazard arc, which took place two years into the storyline. During this period, Caesar’s factory for creating and testing artificial Devil Fruits was entirely constructed from Seastones because of its near indestructible quality.

In addition to constructing seastone spears utilized by Bege during the Whole Cake Island arc to subdue Caesar, it’s plausible that this material could be adapted for larger-scale inventions such as bullets. However, these ideas are not canon and no definite information about them has been provided within the series.

In much the same way, creative solutions can be as commonplace as nails and lipstick. For instance, in different scenarios, Hawkins and Hiyori both used nails as makeshift weapons against their adversaries Law and Orochi, respectively. By merely attaching them to their opponents, they triggered an effect similar to Seastone. On the other hand, during the Egghead arc, Stussy demonstrated a cunning betrayal using lipstick laced with a special material. This simple act left a powerful figure like Lucci immobile.

Given its boundless possibilities, it’s only natural that Seastone could see extensive growth in a world teeming with innovative minds like Vegapunk, Judge, Caesar, and many others from the One Piece universe. As the story unfolds, it’s no wonder fans anticipate further advancements in Seastone’s potential applications.

The Impact Of Sestone On The Series

Roles And Future Implications

One Piece: The Evolution and Impact of Sea Prisms, Explained

Throughout the series’ progression, it’s become clear that while pirates covet the powerful Devil Fruits, the Marines have consistently shown they are not intimidated by them. In fact, the advancements often associated with Seastone are primarily due to Marine ingenuity, particularly Dr. Vegapunk’s inventions. This tool has significantly aided the World Government and the Marines in maintaining some control over the seas.

In many people’s understanding, when a powerful user of Devil Fruit is trapped by Seastone artifacts, the course of a conflict can shift dramatically in an instant. Keeping this in perspective, each significant player – the World Government, the Marines, Pirates, and the Revolutionary Army – will be proactive in developing either minor or major instruments capable of altering battle outcomes swiftly. This expansion of Seastone’s potential uses also means an increase in countermeasures against it.

One Piece is available to watch on Crunchyroll.

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2024-08-27 20:34