Even Guan Liyuan's row of speedboats powered by wind scallops took a full five days to cross the first half of the Grand Line and reach the Upside-Down Mountain... If

it weren't for Guan Liyuan's Armament Haki, which could cover the entire speedboat, let alone the danger along the way, the moment all the wind scallops were activated, the speedboat, which had been reinforced as much as possible in terms of materials and structure, would have fallen apart.

As for the difficulty of ignoring some dangerous climates and sea beasts and driving in a straight line in the Grand Line, it goes without saying...

This day, Crocus was basking in the sun at the Twin Cape. As the former ship doctor of Roger's Pirates, Crocus's life is very comfortable now.

After all, he accepted Roger's invitation only because he felt that "it was a pity for such a person to be defeated by illness before completing his goal", and at that time he also wanted to go to the Grand Line to find out what happened to the "Rumbar Pirates" that Lab was waiting for...

In fact, Crocus still prefers a relaxed and comfortable life, basking in the sun and painting oil paintings.

Although this is the entrance to the Grand Line of the Upside-Down Mountain, and the first step for the rookie pirates of the four seas to enter the Grand Line, most of the pirates will not attack the first human they see after entering the Grand Line. Besides

, with Laboo here, Crocus has always been willing to see pirates if he wants to, and he can't find him if he doesn't want to.

But today, maybe God couldn't stand him being so idle, so he made him witness an "incredible event".

"Huh? What is it? A sea beast? So fast..." Crocus saw a black dot from a distance, "enlarging" in his field of vision at a speed visible to the naked eye.

As a doctor, although Crocus's combat power is average, he has a meticulous observation Haki. In terms of distance, he is far inferior to the owners of the same Haki, but after entering his perception distance, the details of things will be clearly visible, and the closer the distance, the more detailed the perception, and at the closest, it can even be used to connect capillaries.

However, what he sees now... if it is a sea beast, this speed is incredible!

Gradually, the black shadow finally entered the range of Crocus's observation Haki, and he immediately "saw" the other party's appearance.

It was a human with a black and purple body, driving a black and purple speedboat, and the power behind the speedboat was... a row of wind shells? Crocus still had an impression of this Sky Island specialty!

"Is this... using armed Haki to reinforce the hull?" Crocus said he had never seen such an operation.

And judging from the other party's posture, is he going to reverse the Upside Down Mountain?

In the world of pirates, Upside Down Mountain is the same as the Holy Land Marijoa. It is the intersection of the two rings of "Red Earth Continent" and "Grand Line". It is also the point where the equator of the planet and the Red Earth Continent intersect. If the equator is regarded as flat, the Red Earth Continent and the Grand Line will draw an "x" shape in the middle.

If we regard the Four Seas as four pieces of watermelon cut by the "Red Earth Continent" horizontally and the "Grand Line" vertically, then Upside Down Mountain and Marijoa are the head and tail of the watermelon. For the pirate world, these two places are the center of the world, adjacent to the four major seas.

However, the special currents and landforms of Upside Down Mountain make it impossible for this place to become another holy place...

Upside Down Mountain has five turbulent waterways, four of which are from low to high, and there is also a super "rapid flow", which is the downrush waterway rushing to the Grand Line. The intersection of the five waterways is at the top of the mountain, so the pirate groups of the Four Seas normally go to the Grand Line here.

As for why they don't go directly to the "end" on the other side?

It is true that the other side of the super "rapid flow" to the Grand Line is the way to the end of the New World, but there is no "waterway" here, so it is impossible to go by water.

It is not impossible to fly or climb over, but it is meaningless. After all, Roger's treasure is in "Raftel", and the specific location of Raftel is not at the end of the New World, but requires four "historical text signposts" for positioning.

Otherwise, the first one to get qnepiee is definitely not the Pirate King, but the Rock Climbing King...

And going down from the other end, not only is it impossible to sail, but there are also a large number of sea kings waiting to be fed, so it is safer to go through the Calm Belt.

At the same time, if you want to return to the four seas, you usually go through the Calm Belt. From the first half of the Grand Line, you can reach the East China Sea and the South China Sea respectively through the Calm Belts on both sides. The two sides of the New World are the North Sea and the West Sea. There is no need to go upside down!

Ordinary pirates certainly can't go through the Calm Belt, but the problem is that it's harder to go up the Upside Down Mountain than to go through the Calm Belt...

However, this time, Crocus saw what it means to be reckless. He was covered in Armament Haki, and he also put Armament Haki on the speedboat. Then he used a row of wind scallops as power to go upstream directly from the huge waterfall of Upside Down Mountain!

Guan Liyuan encountered some resistance when he approached the Upside Down Mountain waterfall, but because of the wind scallops, he only needed to lift the bow with a little force and let the wind scallops at the tail press down, so that he could "jump" on the sea surface. He actually "stepped" on the waves and jumped to approach Upside Down Mountain. In the end, he suddenly lifted the speedboat into a vertical upward state, and under the thrust of the wind scallops, he flew up along the waterfall...

"When did such a person appear on the sea again? He has been at ease for too long..." Crocus muttered.

As for Guan Liyuan, he rushed all the way to the top of Upside Down Mountain, then identified the direction, and went upstream in the direction of the East China Sea!

After entering the East China Sea, we are no longer affected by the abnormal climate of the Grand Line, and the map can be used normally...

In the Grand Line, due to the special weather and ocean currents, it is basically difficult to go in a straight line. We can only ensure that we are roughly in the direction recorded by the pointer. Occasionally, we encounter abnormal weather or abnormal sea areas, and we must detour. Therefore, the distance between islands cannot be determined specifically, and naturally there is no very accurate map.

This is often the biggest technical difficulty in the construction of the sea train! In

the first half of the Grand Line, we can overcome one or two with stronger strength and more developed technology, and draw inaccurate maps as construction references. After arriving in the New World, there are three pointers, the climate is worse, and there are more dangers. So far, there are only route maps of several fixed routes, but no complete maps.

There is no such problem in the Four Seas. Although accurate sea charts are contraband, they are naturally retained within the Revolutionary Army. Even under Guan Liyuan's organization, maps of the New World are being drawn.

After comparing the directions indicated by the sea chart and the life card, Luffy was indeed in the direction of Rogue Town...

After arriving in Rogue Town, Guan Liyuan parked the speedboat at the port and paid the custodian fee. Although the old man was also very surprised and had never seen anyone in the town playing with speedboats before, he did not make a fuss.

The public security situation in Rogue Town is also top-notch in the East China Sea, and this is not the New World...

On most of the small islands in the New World, Guan Liyuan, who is 3.5 meters tall and carrying a 5-meter speedboat mace, would at most get a few more glances when walking on the street. But if he behaved like this in Rogue Town... it would definitely be a blast!

Besides, Guan Liyuan didn't really need the speedboat as a weapon. The reason why it was made into a weapon was mainly to make it easier to carry. If he carried the speedboat around, he would be considered stupid in the New World.

Walking on the street, Guan Liyuan didn't rush to find Luffy, but first found some graffiti on the corners, took a few glances, and came to a remote tavern in the town...