A whole day passed, Xin, Shirahoshi, and Poseidon visited every part of Fishman Island.
From Mermaid Cove is the place where the mermaids gather and socialize.
To Coral Hill is a port town on Fish-Man Island.
Beverly Hills is one of the wealthier towns on Fish-Man Island. Xin buys a simple shop here for future use.
Gyoncorde Plaza is a notable location within the center of Fish-Man Island, specifically within the Ryugu Kingdom.
Xin can see a stone tablet where his deeds written on it, they made this for the remembrance of the first Human who saved their Queen.
Fish-Man Karate Dojo is a location on Fish-Man Island where the martial art Fish-Man Karate is taught. It is the pride of the island.
Fish-Man District was part of the Ryugu Kingdom that was notorious for being one of the tougher parts of Fish-Man Island.
It was supposed to be closed off because of the notorious pirates inside of it but it was publicly opened after Xin, Shirahoshi, and Poseidon visited it.
Xin also visited Noah, also known as the "Ship of Promise".
Noah is an enormous ship formerly sitting in the Fish-Man District, now resting at the Sea Forest, that was created during the Void Century by the people of Fish-Man Island. Its origins are unknown, and it is about half of the size of Fish-Man Island.
Noah is an ark that is much larger than any other wooden ship seen so far in the series. The ship's size is such that it is designed to be pulled by Sea Kings.
It has several winches jutting out from holes in its hull on either side. It seems to be held in place by large chains on the winches.
The chains allow the Sea Kings to tow the ship. There is a large dip in the guardrail on both sides where one would put a ramp or staircase to allow for embarking and disembarking from the vessel.
The bridge is at least four stories high, has a curved roof, and the windows are covered with columns that resemble prison bars. The figurehead is round and curled outward at the top. It seems to have accrued a large layer of sludge or moss on the railing and figurehead, as well as what look like barnacles on the bottom of the hull.
Seeing the ship suddenly think a funny idea, why not use Noah as the carrier of the whole Fishman Island.
After all, this ship is big enough to carry the whole Fishman Island, but the problem is if the Sea King can pull it with the Fishman Island on it.
And there's also a problem with the Fishman Island, Xin don't know if the bubble of the Fishman Island can withstand the travel under the sea.
Otohime and Neptune beside him slightly shocked hearing his suggestion, they need at least tons of manpower to do it, maybe they need to prepare for 5 years just to accomplish their plan.
While they are thinking, Poseidon who keep looking at Noah said," We can do it, i can feel that Noah can easily carry the Fishman Island,"
"What about the Sea King?" Xin asked.
"I can feel some enormous Sea King below the Fishman Island, they are big enough to pull the whole Fishman Island," Poseidon said.
"So this is the fulfillment of the promise from the Void Century," Otohiem gratified.
"I did not expect that in my reign, the promise was actually going to be granted," Neptune emotionally said.
The giant ship is hundreds of years old, and was part of a failed attempt to move into the human world. Joy Boy made a promise to Fish-Man Island to use Poseidon's powers to raise the ship to the surface, but after breaking the terms of agreement he was forced to leave Noah for another person to raise.
The people of Fish-Man Island promised Joy Boy that they would keep Noah safe on the ocean floor until a certain day arrives, and the people have been doing just that.
However, Noah's exact mission is unknown and will only be revealed the day it is raised.
But they did not expect that the use of Noah is actually to carry the whole Island with it into the surface.
"So we only have 5 years before the promise from that century starts." Neptune said.
"Let's start to get ready, we don't know if five years is enough to reinforce the bubble protection of the whole Fishman Island," Otohime said.
"Okay, I will tell my minister the good news, I know that the whole Fishman Island will feel glad that the promise from our ancestor is about to fulfill,"
After that, they come to the Sea Forest.
The Sea Forest is a place northeast of Fish-Man Island known as the Ship Graveyard.
It has a lot of coral growing around it, more so than normal due to the light emitted by the Sunlight Tree Eve. It is populated by all kinds of sea fauna, including schools of fish and pods of whales. There are also several shipwrecks there because sunken sh.i.p.s are dragged there by the ocean currents, thus the epithet "Ship Graveyard".
The first thing Xin did is to walk to the mysterious Poneglyph, he is not curious about the content of it but he is just curious about what Poneglyph really is.
Neptune brings them to the center of the Sea Forest where a gigantic block of stone stands there covered with coral and sea moss.
Poneglyphs are mysterious steles with history inscribed on them in the form of ancient letters -. They are scattered among the islands of the world, and it is said the only person left in the world who can read them is Nico Robin.
But the problem is… Robin is still a kid, and the most problematic of them all is, she changes her profession to an Inscriptionist from Archeology.
Maybe in the future, there's another Robin will paper and translate all the Poneglyphs from all over the world.
Xin helplessly looks at what he wrote on but he suddenly becomes shocked by what he sees on it.
If he is not wrong, the thing written on the Poneglyphs is the old English Alphabet from his original world.
If he is not wrong, the message written on it is a letter asking for forgiveness from the man called Joy Boy.
After reading it carefully, Xin looks at below and sees a strange mark on it, he walks and removes the moss covering mark.
His lips twitch seeing the mark because he knows what kind of mark of it, the mark is actually the mark of his own Family.
The Fei Family Symbol that he made and exclusive only for them, there's also a strange note below saying,' I don't have enough time, but I know that I will accomplish my promise in the future'.
Xin feels that the one who made these Poneglyphs is actually him from the future, but he was confused, how the heck does he go to the future? Did the System give him a mission that he need to travel back to the future? This is the question that starts to bother Xin but he knows for sure.
He did all of this in a rush, while there's something that happens that he needs to stop and promise them that he will get back and finish this job.