How to Complete “The Sea’s Legend” Request (Request 66) in Pokemon Legends: Arceus


Randrew Mendrico

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Drew is one of the game guide writers in PlayerAssist. He mixed his communications degree with his love for video games to help other gamers with different video game situations. Drew loves action-adventure, story or character driven role-playing games.


If you are struggling to complete “The Sea’s Legend” Request in Pokemon Legends: Arceus, this guide will walk you through it.

How to Complete “The Sea’s Legend” Request (Request 66) in Pokemon Legends: Arceus

Pokemon Legends: Arceus is set in olden times in the Pokemon world when it was rare to find harmony between people and Pokemon. Set in the Hisui region, modern-day Sinnoh, you will join the Galaxy Expedition Team (Galaxy Team for short) as a member of the Survey Corps stationed in Jubilife Village. You will be tasked to meet every Hisui Pokemon species to complete the region’s first-ever Pokédex.

The Galaxy Team will task the player to do missions in the game. Additionally, various people will also ask for help from the player requests. One of these requests is Request 66, titled ‘The Sea’s Legend. This guide will teach you how to complete the ‘The Sea’s Legend’ request.

The Sea’s Legend Request

The player must first accept the ‘Scaling Perilous Heights’ mission to unlock this request. Then, they must encounter and catch a Buizel, Mantyke, and Hisuian Qwilfish to add them to the player’s Pokedex. Finally, they must reach the Fifth Star Rank.

Buizel can be found in the Obsidian Fieldlands (south of Horseshoe Plains, around Worn Bridge and Windswept Run) and the Cobalt Coastlands (east of Aipom Hill and north of Bathers’ Lagoon). Buizel can be found in these areas at all times of the day and in every weather condition.

Mantyke can be found in the ocean east of Gingko Landing and the surrounding waters of Tranquility Cove in the Cobalt Coastlands. Mantyke can be found in these areas at all times of the day and in every weather condition.

The Hisuian Qwilfish can be found in the Obsidian Fieldlands (in the waters surrounding Ramanas Island) and the Cobalt Coastlands (in the ocean east of Islespy Shore, east of Lunker’s Lair, around Tranquility Cove, southeast of Hideaway Bay, and Tombolo Walk). The Hisuian Qwilfish can be found in these areas at all times of the day and in every weather condition.


Head to the Galaxy Hall and proceed to Professor Laventon’s room on the left side of Captain Cyllene’s office. In Professor Laventon’s room, you will find a blackboard behind Professor Laventon himself. The player can take on a few requests on this blackboard.

Read what’s on the blackboard and the prompt, and select ‘The Sea’s Legend’ request. After doing the requirements mentioned above, you can now start this request! And, just like that, ‘The Sea’s Legend’ request has started!

Starting the Sea’s Legend Request

After starting the request, a cutscene will play where Professor Laventon will immediately talk to the player. He will fill the player in with the requested details. After that, he will tell the player about when he strolled in Prelude Beach the other day. While walking, he saw something swimming near the shore. However, it had already disappeared before he could take a picture of it.

He assumes that what he saw was some Pokemon. Professor Laventon will say that from how the Pokemon swam, it looked like it was drifting on the ocean currents. This would take it to the Cobalt Coastlands.

Now he wonders if that Pokemon was headed there for a specific purpose. Because of that, he will call on Warden Iscan of the Diamond Clan to learn more. After a quick screen-fade, Warden Iscan will be in the room with Professor Laventon and the player.

Warden Iscan will tell Professor Laventon that he could not tell much based on Professor Laventon’s story alone. However, he can tell them a story about long ago. When the Cobalt Coastlands were still known as the East Sea, a princely Pokemon was said to live there. The story of this Pokemon can be found in a tome called ‘The Sea’s Legend. However, no one knows much about the tome or the story beyond what Warden Iscan has said.

Locating Where Manaphy is

To complete this request, the player must catch the “princely Pokemon” mentioned in Warden Iscan’s story and show it to Professor Laventon. To do that, the player must accomplish the following.

First, the player must add Buizel, Mantyke, and Overqwil to their party. You can add other Pokemon to fill your party of six Pokemon aside from Buizel, Mantyke, and Overqwil. 

You can find a book titled “The Sea’s Legend” on the second floor of Canalave Library in Canalave City in the game Pokemon: Brilliant Diamond and Shining Pearl, which is set in the Sinnoh region (the future of the Hisui region).

That book tells the story of a Pokémon called the Prince living in the East Sea. A human is said to have searched for the prince with a Mantyke, a Buizel, and an Overqwil. The player will be the human that is referred to in the book! Now, you might be wondering why you should do that when it was not mentioned by Professor Laventon, Warden Iscan, or anyone and anywhere in the game, for that matter. 

To obtain an Overqwil, the player can evolve a Hisuian Qwilfish. The player’s Hisuian Qwilfish must first master its Barb Barrage move, which can be learned when the Hisuian Qwilfish reaches Level 15 and masters it when it reaches Level 25, then perform a Strong Style Barb Barrage 20 times against an enemy. After that, the player can let the Hisuian Qwilfish into an Overqwil!

Heading to the Cobalt Coastlands

According to ‘The Sea’s Legend’ in Pokemon, Brilliant Diamond, and Shining Pearl, the three Pokemon and the human set off over the sunset-streaked sea and sailed through the ocean gate stretched over the waves.

So, after adding Buizel, Mantyke, and Overqwil to the player’s party, head to the Cobalt Coastlands (the East Sea according to the story), wait until evening (so the sea will be “sunset-streaked”), then go to the two rock pillars (the ocean gate) near the middle finger area of the Sand’s Reach which is northeast of the map of Cobalt Coastlands.

Related: Where to Find an Alpha Hisuian Qwilfish in Pokemon Legends: Arceus

Upon arriving in the area, ride Basculegion in the ocean and pass through the middle of the two rock pillars. Then, after that, the player will hear something like a cry and a boulder shifting in the distance. 

This is now the part of the story where the prince has heard of the human’s journey and went to meet them at the Seaside Hollow. So, the player must head to Seaside Hollow, found on the northern side of the cliff of Veilstone Cape (or southwest of Seagrass Haven). Before entering the area, you can save your game here just to quit and load back if anything goes wrong (turn off the autosave feature if this is what you intend to do).

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Completing The Sea’s Legend Request

Upon entering Seaside Hollow, you will see a Level 50 Manaphy, the prince mentioned in the story, and three Phione Level 33, Level 34, and Level 35. Now the player must catch the Manaphy! Even though not required to complete the request, the player can catch the Phione as they are rare Pokemon.

Once one of them notices the player, the Manaphy and Phione will start attacking with Bubble and Water attacks. Taking them on all at once may be difficult, so it is recommended to battle them individually. This can be done by engaging each Pokemon in battle once they go to the room’s edges to attack. To engage in a battle, the player must throw a Poke Ball to break the water shield before you can throw out one of your Pokemon.

As the player would have to battle them, it is important to note that Manaphy and Phione are Water-type Pokemon. This means they both are weak to (super effective) Grass-type and Electric-type moves and resistant (not very effective) to Fire-type, Ice-type, Steel-type, and Water-type moves.

After catching the Manaphy, head back to either the Beachside Camp or Coastlands Camp and talk to Professor Laventon. He will then notice that the player has captured the mysterious Manaphy swimmer. Professor Laventon will then say that the Manaphy is a migratory Pokemon and has drifted across the seas since long ago. After that, the request is completed, and Professor Laventon will reward the player with three Comet Shards.

Now that you have completed the ‘The Sea’s Legend’ request, you can try to complete other requests, complete missions, or complete Arceus’ task for you, which is to catch ‘em all!

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