This story happened after they went to Sky Island. I don't know if any of these facts are already discovered during One Piece time but I hope you all forgive me. Here it is…
Chapter 1: Dumb?
In a town in which everything is modern and new, the Straw hat Pirates docked. This time, Luffy didn't just run off. They were gonna trade the gold they got from Sky Island and Luffy wanted to carry it. Only Zoro was left on the ship to guard
"What town is it again? Usopp asked
"The town is called Fleshia" Robin answered
Sounds familiar Luffy thought
"It's famous for their modern weapons, gadgets, games and they really got good inventors." Nami described
"I wonder if we're going to find a shipwright here or maybe any meat" Luffy said while carrying the gold.
Nami let him carry the gold but if he ever lose it, he's gonna get it from her.
"Hey, look!" Chopper called out to the others while looking at a poster
"Fast Solving Contest, if you can solve problems or operations in a matter of seconds, join in. The entrance fee is 50 000 beli but the prize is 250 000 000 beli." Sanji read
"250 000 000!" Nami's eyes turned into beli
Luffy dropped the gold as he smelled the scent of meat. He quickly runs off without the crew realizing. When he passed a street, someone grabbed him by his shirt from behind.
"You have a big appetite as always, Luffy" a creepy voice said
It couldn't be… Luffy was scared to turn around but he needed to find out if he's worst nightmare happen.
….
"Where did that Luffy go?" Nami said, annoyed because Luffy left the gold out in the open
"Nami-swan, I'll join the contest" Sanji said with hearts as eyes. He was now the one carrying the gold
"Thank you, Sanji-kun. Robin, how about you join?" Nami begged
"I'll join. It sounds interesting" Robin smiled
Nami was sure they were gonna win the contest. Time passed and after they exchange their gold with money, they went to Cansinia Stage, wherein the whole events of the contest will be shown to an audience. Sanji and Robin signed up as the rest (including Zoro) find their seat.
Start of the Contest…
"First category, Mathematics" the host started while the contestants are sitting in an armchair. The judges were in front.
Besides Robin and Sanji, three more masked contestants joined the contest. Number 1 is a small, slim person who has long, dark orange, shiny hair. The 2nd one is slouching in his/her arm chair. He/She is obviously not interested. That person is slim, a little bit tall and has black hair. The third person is also slim but short and had short, black hair.
"165 743 + 689 002-745 divided by 5 x 18=?" the host asked
The contestants started solving the problem. The crew saw their amazing speed. Sanji was obviously getting confused. The 1st and 2nd contestant was already through and both of them raised their papers in the air at the same time.
"Okay, contestant number 1 and number 2" the host chose
"852 063" the number 1 and number 2 answered sleepily and at the same time
The host looked at the paper he was holding
"Correct" the host shouted
2nd part…
The points are now:
Number 1: 15
Number 2: 15
Number 3: 6
Number 4 (Robin): 14
Number 5 (Sanji): 0
"Second Category, History" the host started again.
Nami was sure Robin could answer all of these questions. After all, it was her specialty.
"The first one to circle the globe was who?" the host asked
Robin thinks about it first and raises her hand but Number 2 contestant raised first.
"Fernando de Magallanes" he answered
"Correct" the host said
Awarding Part…
The final scores:
Number 1: 28
Number 2: 29
Number 3: 14
Number 4 (Robin): 25
Number 5 (Sanji): 4
"And the winner is… Contestant number 2, Congratulations!" the host happily handed to him the gold that was worth 250 000 000 beli.
Nami was frustrated as they stood up and head for the exit.
"Sorry, Nami-swan, I didn't get it" Sanji said sadly
"It was really interesting how that number 2 contestant beat me in History" Robin smiled
"Robin" Nami was crying
They heard people talking.
"Are you happy now?" the contestant number 2 sarcastically said as he faced contestant number 1. They were still wearing their masks and number 2 was carrying the gold
"Very. You tried your best for the very first time" number 1 said nonchalantly.
As number 2 faces front, he bumped into Zoro and fell down
"Ouch" he said. Then, he looked up.
Nami saw him and her anger came back
"You!" Nami started to shout.
Before Nami could say anything else, he handed the gold to Nami. The whole crowd who was watching their argument was shocked
"Fine, you can have it. I don't need it" he said gently and walked away with contestant number 1.
The crew was still shocked.
"Gold! Gold!" Nami's eyes turned to beli as she quickly hug the gold
"Umm… I'll go replenish our supplies" Sanji said as he recovered from the shock. "Usopp, come with me" Sanji called out
"Eh? Why?" Usopp complained
"Who's going to carry all our supplies" Sanji asked with a scary face
"Fine" Usopp just came quietly.
"I'll look for Luffy" Zoro volunteered
"We'll be waiting in the ship" Chopper waved goodbye
…
Sanji and Usopp finally finish their shopping. Usopp, who was carrying almost all the supplies, saw the masked long, dark orange colored hair, holding a straw hat. It was the same as Luffy's so Usopp found it strange.
"Hey, Sanji, look. Isn't that Luffy's hat?" Usopp pointed at the walking person
Sanji looked and saw that it was true.
"Let's follow her. Maybe we could find Luffy" Usopp said
Sanji just nodded. They followed her to some kind of room. She left the door slightly open so the two had a chance to peek. She threw the hat to a second person. The second person came to view and it was the winner of the contest.
"Here" she said
"Where'd you hide it?" he asked
"Somewhere in my house" she said as she removed her mask
She was a beauty. Perfect complexion, blue eyes, red lips. She's just like Nami. Sanji just can't help but fall in love.
"Thank you" the winner said as he also removed his mask
Sanji and Usopp's eyes widen and even brushed their eyes a few times for the mask man and the winner of the Fast Solving Contest was none other than Luffy
"Now… Personality Change" he happily as he wears the straw hat.