Normal P.O.V

The group of Neptune and the other Strawhats reached the Ryugu Palace and headed inside. The moment they entered, Neptune was scolded by his Ministers for going out haphazardly. The strahwats glanced at each other and continued listening to the scolding.

After calming down, The managers mentioned to Neptune that they have a message from Fukaboshi. "Really?" Neptune raised an eyebrow and started whispering to his men.

As the ministers speaks with Neptune, Camie, Pappag, and the Straw Hats had realized that Luffy wandered off...

"Oh, of course he'll wander off.. " Usopp sighed in defeat. The rest of the group nodded their heads and sighed as well.

Meanwhile, Luffy followed the scent of food, trying to find the banquet hall Neptune talked about along the way to his palace. The smell lead him to a door where a guard is just coming from.

Using his 'Ninja skills', the rubber man wandered inside, finding the room pitch black but he could see the food on the other side of the room. "Oh~~ FOOD!!""

He headed straight for it, but stopped when he noticed something off. "The ground is rather odd..." Luffy tilted his head to the side and jumped. "Especially this bouncy section!" He jumped for a few seconds until someone, with a high feminine voice, suddenly shouted and the lights turned on.

Luffy looked at the 'ground' only to be met with the body of a person... A giant one.

Luffy finally noticed where he was standing and why 'the ground' was bouncing...

... The bouncing part was giant breasts...

"Uh?" Luffy finally looked up and was met with the frightened face of Princess Shirahoshi, a giant smelt-whiting mermaid. "Hello!" Luffy broke the silence and waved at her.

The princess tried to put on a brave front after seeing Luffy, thinking him to be an assassin...

... before crying out for help... "Papa!!! Help me!!" She screamed.

****

Meanwhile Vander Decken IX who was a Japanese bullhead shark fish-man, and his crew: the Flying Pirates, were traveling the ocean floor. Decken angrily asked Wadatsumi if they received any reply from Shriahoshi. When Wadatsumi answered that she had not reply for the past ten years.

Decken threw an axe with a rose on it as a message in the direction of the castle. "She must either marry me or die if she chooses someone else!" He stated. "I won't let anyone have my love!"

****
(Y/n)'s P.O.V

I continued eating the delicious food while waiting for the arrival of my crew while Zoro was drinking beside me.

I can't help but feel anxious. There's something wrong here... For the past minutes, I was trying to remember the upcoming events. It's been a while since I've watched Fish-man ark.

I stared blankly at the fruit in my hand then at the guards standing on each side of the door...

Then I finally remembered...

It's a trap...

They want to capture us...

"Zoro..." I whispering. "Hm? What is it?" He stopped drinking and tilted his head to the side. "It's a trap Zoro. They're going to capture us." I told the swordman.

"WHA-" I covered his mouth with my hand and hissed. "Don't yell idiot! It'll be harder for us to escape." I mumbled under my breath while glancing at the guards.

"What should we do? Smartass?" Zoro glared. I smirked a bit and whispered.

"I have one hell of a plan..."

****

Normal P.O.V

Back at the palace, Shirahoshi continued to cry with Luffy trying to calm her down. She didn't listen to him and cried harder. Few minutes later, The axe that Decken threw earlier suddenly fly into the room straight for the Princess. Luffy spotted it in time and managed to knock it away, saving Shirahoshi, much to the princess' surprise.

The guards and the Minister of the Right entered the room a moment later. Shirahoshi grabbed Luffy and hide him behind her back. "Princess! We heard yelling coming from your room?!" The guards  looked at Shirahoshi. "Are you okay, your highness?!"

"O-oh... It was just a bad dream, that's all..." The giant princess told them. They immediately calmed down and accepted the explanation before telling the princess of the suspicions of the Straw Hats due to Madame Shyarly's vision of Luffy destroying Fish-Man Island.

The Minister of the Right erroneously stated that they 'captured' Zoro and (y/n) and were about to capture Nami, Usopp, and Brook as well. Then, They left the room to continue searching for the missing Strawhat Luffy.

Once they left, Shirahoshi apologized to Luffy for her outburst after realizing he was the one to save Megalo. They talked while Luffy ate some of her food. Shirahoshi revealed that Decken has a "curse" known as "Mato-Mato" which allows him to target anything from any location. As such, it unsafe for her to go outside and she has been locked up in the Hard-Shell Tower for ten years.

Shrihoshi watched in awe. She became fascinated with Luffy while he was eating. 'how can such a small person like Luffy can eat so much?!' She thought. The princess poked his stuffed cheek and Luffy yelled at her for this. "Hey!! Stop it! You're annoying me!!"

Shrihoshi immediately broke down in tears. "Wahh!" She cried. "N-no one had ever yelled at me before!"

"I don't like you." Luffy bluntly said. "you're a crybaby. I hate crybabies." After hearing his words, Shrihoshi cried even more.

Luffy completely ignored her and finished eating her food. "Ah~ that was yummy!!" He happily smiled. "Thanks for the food! Would you want to go for a walk outside? I'll protect you if anything is thrown at you! Giant mermaid!"

****

Usopp, Nami, and Brook subdued some of the Neptune Guards. They finally understood why Neptune wants them to accompany him to the palace.

To capture them.

Camie pleaded with them not to fight anymore. She was beyond terrified. The royal guards were coming from everywhere, trying their hardest to capture the strawhats.

"The guards were the ones who attacked us out of the blue!" Usopp yelled at Camie. "I'm sorry Camie san, they want to capture us for whatever the reason, we need to defend ourselves. " Brook apologized. "After defeating all the guards, can I see your panties Nami san?"

"SHUT UP BROOK!!"

While the three strawhats were fighting their way out of the castle, The minister of the Left were begging Neptune to use his power against them. Neptune shook his head. He does not wish to go against the pirates just because of a prediction, but he decided to capture them just in case. "I have no other choice..." Neptune went to attack the strawhats but someone intercepted him.

Neptune gasped in shock when he saw (l/n) (y/n) blocking his attack without breaking a sweat. "Hello~!" The (h/c) haired woman grinned. "I'm (y/n)!"

Behind her, the infamous pirate hunter Roronoa Zoro attacked the minister of the Left with his sword Wado. "B-but how?!" Neptune yelled.

"Ah~ we broke out of your prison upon hearing the party going on. So me and my buddy Zoro there decided to join the fun~!" (Y/n) punched the king a few feet away. "It's rude to ignore your guests Nepty.." She crossed her arms and pouted.

"(Y/n)! Zoro!" Camie, Usopp, Nami and brook smiled upon seeing the two. "Stop messing around woman." Zoro scolded. "Let's kick some asses!"

The now five strawhats continued fighting. Their opponents were easy to defeat, and within few minutes, They defeated everyone and captured Neptune.

"Uh, (y/n). I think you're going too far." Usopp said. The female shook her head and smiled at her wonderful job. "Nah, let's get give them some of their own medicine." She laughed at the chained ministers, the Ammo Knights and Neptune. "Nami." (Y/n) dramatically bowed to the cat Bulgar. "Enjoy~"

"Where's the treasury?!?!?!" The navigator yelled at one of the guards, trying to intimidate him into giving the location.

Usopp was annoyed when Nami asked that and was annoyed further when Brook suggested singing to calm the frightened guards and ministers.

Neptune mentioned that since his back gave out, he is not one for fighting and has gotten too old to do so. "That's just some lame excuse Nepty." (Y/n) interrupted the king. "I know someone who suffered from canser and was still considered the strongest man alive." She said. "You're just a weakling."

The group inquired about Luffy, wondering where he got off too as well. Zoro suggested that they grab the Sunny and ran, but Usopp countered that the coating bubble broke when they rammed into the island, so they could not leave. Nami also noticed the log pose was going haywire and could not lock on anything.

One of the chained ministers mocked her for this and when she asked why, he agreed to tell her only if she untied him.

Suudenly, The doorbell to the palace rang, signaling the return of the princes. Zoro picked up the com and answered, claiming that they had hostages much to the chagrin of Usopp and Nami. Zoro managed to bargain the hostages' freedom in return for them finding the rest of the Straw Hats and coating their ship so they can leave peacefully.

Fukaboshi agreed to the demands and they finally revealed the message that Jinbe had left.

The messages were: "Do not to fight Hody" and "I'll be waiting in the Sea Forest".