The bandage spirit becomes a spirit! Luffy and the others are surprised!

After hearing the strange humming sound, the frog stopped moving forward and looked stern.

"Great, the frog has stopped!" Luffy didn't care about the strange cry and screamed in surprise as he looked at the frog that had stopped moving.

"Catch up with him now!" Usopp commanded while the iron was hot.

"Boom, boom, boom -"

The huge strange cry was getting closer and closer. The frog fixed his sight and stood firmly where he was.

Straw Hat and the others could not help but hold their breath. The object with the strange sound quickly appeared in the fog in the distance. White smoke kept coming out of its head. It was dragging a long string of carriages, all of which were made almost entirely of steel. It was glowing with a cold green light and sailing straight on the sea.

It's just a strange thing made of steel.

The frog stood in front of the steel monster, breathing deeply: "Quack--"

"What is this!" Usopp screamed. The steel monster was in front of the Merry. Following the frog's path, he pursed his lips and looked a little ugly: "What did we encounter?"

No one else knew what the hell this thing was. When Dazai Osamu saw that the object looked familiar, he roughly understood what it was, but he didn't remind anyone out of mischief.

Although I see familiar things from my original world in the world of pirates, I can see through the surface and into the depths.

The technological level of the pirate world is uneven and there are huge differences. Most pirates are still using old canvas boats that are powered by wind, but the navy already has ships that are not powered by wind (refer to the Calm Belt), and some pirates are also using technologically advanced ships (refer to Sanji's family. Don't ask Dazai Osamu why he knows this, because the story of Sanji and his family of villains has become a bestseller.)

Is it a regression in scientific history or is it just the way it is?

The 100 years of history that were erased have pretty much concealed these truths.

"Quick! Turn around! Turn 180 degrees!"

In order to chase the frog, the Merry has already gone deep into the sea and is only one step away from the steel monster that is about to approach.

Even those who don't know much know the disastrous consequences that would result if the small, battered and tattered Merry collided with it.

Regardless of everyone's surprise, the steel monster was ruthless and kept speeding up. When it was about to hit, Nami made a quick decision and held the rudder to turn 360 degrees, and the Merry narrowly missed the steel monster.

Once again escaped from the scythe of death.

"Quack--" The frog was not afraid of the steel monster in front of him at all. He gritted his teeth, sank into the sea, and his legs stepped on the water, with his veins beginning to burst.

"Ah-"

"Frog, hurry up! Run!" Luffy, who was turned so quickly and couldn't keep his balance, fell to the deck. He turned his head and saw the frog still in front of the steel monster. His pupils shrank and his face flushed as he yelled at it: "What are you still hesitating about?!"

Do you want to be hit?!

"What is that iron thing?" Usopp said, patting his chest with lingering fear.

"Is it a ship?" Chopper said uncertainly.

"No!" Nami's face was covered in cold sweat. She was obviously still immersed in the thrilling moment just now. Her pupils were motionless as she caught the huge steel monster that passed by her quickly and brought gusts of strong wind: "This kind of weird thing can't sail on the sea!!"

It has no canvas, no light wood, it is made entirely of steel and has nothing to do with a ship. How could it sail so smoothly on the sea and at such a fast speed?

This completely overturned Nami's cognition.

Dazai Osamu narrowed his eyes, took a few steps forward, and leaned his elbows on the railing. He stared at the sea surface under the feet of the steel monster in front of him for a few seconds, chuckled, and reminded: "Because of the fixed tracks under your feet."

"Track?" Nami repeated Dazai's words hesitantly, her eyes widened, and she followed Dazai's line of sight, looking carefully and attentively at the bottom of the 'steel monster'.

A long fixed route loomed, surrounded by two equally long steel bars, with rectangular blocks placed inside. The round "feet" below the steel monster were embedded in the two long steel bars, moving forward smoothly. (Everyone should know this, refer to the train) That is the secret of its free navigation on the sea.

"Bam—"

"Ah! It was hit!" Luffy sighed and said.

Usopp stood behind, holding his head tightly, his eyes wide open, and his expression was extremely ferocious.