"No. We didn't climb over that mountain." Coby answered Luffy's question with starry eyes.

Hearing Coby's answer, Luffy opened his mouth in surprise: "Why?!" Can you reach the Grand Line without climbing that mountain?

"The headquarters' warships can get through the doldrums, although they are not 100% successful!" Coby explained the shortcuts of their navy, and Luffy was amazed: "This is too cunning!! But how is this possible? There are sea kings there that are several times larger than the navy's warships! We had to work very hard to get through!"

Luffy and his crew had been to the Calm Belt before. For a triangular sailboat that relies on canvas for navigation, the Calm Belt is a hopeless hell. They were lucky to meet a kind-hearted sea king and were able to escape in a thrilling manner.

In that place, there was no wind, and the sea was full of dangerous sea monsters that could swallow them all with a big mouth, so Luffy was extremely curious.

Coby smiled and revealed the secret of the navy's crossing of the doldrums without reservation: "In fact, there are stones called seastones embedded under the navy ships!"

"I know that thing! Once I touch it my whole body feels limp and I have no strength at all!" Luffy puffed his lips and said sadly.

"It also has that function. Seastone can emit the same energy as the sea. People like you who have eaten devil fruits will be sealed when they encounter it. For many extremely vicious devil fruit criminals, the navy also uses seastone to make shackles."

During the few months Coby has been in the Navy, not only has his appearance, personality and strength changed dramatically, but because he has joined Garp's name, he is also familiar with some of the Navy's more common secrets: "It also has another function, because the energy it emits is the sea, and for the fish in the sea, it is naturally ignored."

"I see. So when a ship passes through the sea, the sea kings won't notice it! You're worthy of being a scientist of the navy!" Nami, who had left Zoro's large group and sneaked to the swimming pool to eavesdrop, suddenly realized that the navy was equivalent to stepping on a bug to pass through the doldrums. Nami had a new understanding of the navy scientists.

"Sister Nami, come down and play! It's the swimming pool!" Chimney splashed cold water on Nami, and greeted her happily while she was lying on the lounge chair.

"Be quiet! Chimney! I'm eavesdropping!" Nami covered her forehead with her hands in pain and warned the loudly shouting Chimney.

Grandma Kokoro's forehead was covered with black lines: Is it really necessary to shout about this so loudly?

"Nami-san~~~" In the distance, a yellow unidentified object was shaking with a greasy tail sound. Although it was far away, it would arrive. With a flash, it elegantly placed the plate it was carrying, and looked at Nami in a unique bikini with shining eyes. His heart was pounding. He took a deep breath. Ah~ this is the taste of love.

"Nami-san~ This is your favorite dessert, this is you--" Nami grabbed Sanji's mouth and said coldly: "Quiet, Sanji!"

Sanji's heart skipped a beat and he nodded, feeling the softness of Nami's fingers pinching his mouth. The aloof Miss Nami is also so beautiful~~

Not to mention the nonsensical farce on Nami's side, Dazai Osamu also successfully heard the secret of the navy's crossing the calm belt. He took a sip of mellow black tea with an uncertain expression, and his eyelids slightly drooped half a millimeter. Although the technology in this world is not as convenient as his own, there are many magical species. The navy continues to develop and utilize these items, and these secrets are locked up for ordinary people. In addition to what Coby revealed, there must be many research results hidden inside. The navy's foundation is indeed very deep.

"Behind this epoch-making technology, there is always the naval scientist Dr. Vegabank!" Speaking of this doctor, admiration appeared in Coby's eyes.

Hilumbo, who had been standing next to him as a background, couldn't help but speak up: "Yeah, he's really amazing! Explaining the conditions for the transformation of devil fruits and developing new technology that allows [animals] to eat devil fruits are all the great things he has done in recent years!"

"Dr. Vegabank is really amazing! There are countless masters in the world. I just realized how small the world I lived in before was." Coby clenched his fists excitedly. After joining the navy, he saw a lot. These information and experiences constantly broke down the old self and constantly assembled the new Coby. Thinking of this, Coby's voice trembled a little: "Luffy, if you hadn't jumped out of the wine barrel that day, I would still be working as a handyman on Albida's ship!"

Luffy saved his life!

"Hahaha——" Luffy suddenly held his stomach and laughed. He also thought of the little bean Coby he saw when he jumped out of the wine barrel: "Yes, you were on the Albida ship. When I think of the reason why you stayed, hahaha——" Luffy couldn't stop laughing. Coby also smiled awkwardly with his head around the back of his head. That reason was really weird~

The two who had become somewhat unfamiliar with each other talked back to their previous state. Good times always pass quickly, and soon it was time to say goodbye. The Straw Hat Pirates gathered together. They stood a few steps behind Luffy, watching Luffy face the farewell of his friends. Even the carefree Luffy was reluctant to leave: "Are you really leaving? Eat first!"

"We are enemies, we can't be too close!" Faced with Luffy's aggrieved look, Coby restrained his soft heart and advised him helplessly.

Luffy was quiet, looking at Coby quietly.

The clouds in the sky were dyed orange, and through the light, a soft layer of yellow was cast on the ground. I left today, and I don’t know when I will see you again. The sea is huge, and every time we meet, it is fate. Coby looked at his friend Luffy with a firm look in his eyes: "Luffy, do you know the name of the second half of the Grand Line?"

"?..."

"People gave the last sea area behind the Red Earth Continent another name, called the New World!!" "New World--" Luffy's eyes lit up.

"That is the sea where powerful people who are opening up a new era gather! The one who can conquer that sea is the Pirate King!" Coby swallowed his saliva and mustered up the courage to speak out his true feelings: "Luffy! We will definitely meet there again! I will become even more powerful and bring you to justice! I will definitely become the admiral of the navy!"

There was silence for a moment.

Coby came back to his senses and blushed. What the hell did I say?!

"Yes, yes, yes - I'm sorry! I got carried away! It's so embarrassing. I really want to find a hole to crawl into. I felt a little proud after seeing you. I..." Coby apologized to Luffy incoherently, wishing he could dig a hole and bury himself in it.

Luffy smiled, his eyes recognizing the words Coby described, "Aren't you going to fight me? Then you will definitely do it! General?"

Luffy's face curved even wider, and was particularly bright: "Next time we meet, we will be stronger! Even more powerful!"