It was the year 1947 and Johnny Thunder had just made a name for himself in the world of archeology. Being only 23 made him the youngest person to ever uncover such a massive find like the Re-Gou Ruby. It was said to be connected to Bat, the cow goddess, of course everyone thought it was nothing more than a good luck charm. "Well Johnny, after your trip to Egypt, where do you think you'll go next?" A reporter asked.

"I'm not sure, the Amazon would be a nice vacation. But then again I did always want to travel around Asia, especially to find the lost treasure of Marco Polo." The adventurer replied. "It depends on what Dr. Kilroy wants for the museum next."

Inside said museum was none other than Charles Kilroy with the two other adventurers, journalist Pippin Reed and pilot Harry Cane. "Heh, I just realized why my parents named me Harry. So where are we gonna go next?"

The old doctor was preparing a new special exhibition all about Japanese culture, the centerpiece would be a different dragon statue. "We shall fly to Kyoto once Johnny returns, I would have preferred to have a little Shinto shrine or a scroll depicting the Kami, but at this time period people don't know as much about different cultures and dragons are popular." Kilroy joked.

Unfortunately as they were talking, no one noticed a familiar figure eavesdropping from outside the museum. It was none other than Sam Von Sinister, a self proclaimed baron who had his own private collection of artifacts from around the world. "Kyoto huh? Well I'll just have to get there first, after that I'll give Johnny boy and his friends a little surprise. Eh, I have time to spare, might as well do a little sightseeing before finding that statue."

The Adventurers thought the same when they arrived, Dr Kilroy was leading the younger adults to a dohyo. "The word Sumo came from the verb Sumau, meaning to compete or fight." He explained. "It was stated that the two Kami of thunder and water were the original sumo wrestlers, competing over who would be the one to rule the Japanese islands."

"Electricity and water huh? Sounds like something from a cartoon about crime fighting technocolour heroes." Johnny snickered. "Why are they so.. Umm, fat?"

"The funny thing is sumo wrestlers, or rikishi, were once quite slim. That soon changed when the rikishi realized that it would be a lot more challenging to push someone with excessive weight out of the ring. And now every day they consume a massive stew known as Chankonabe, alongside many bowls of rice and beer." Kilroy added. "It's a sport rich with history and it's a shame it's so little known outside of Japan."

"Well maybe that could change, oi. I'm getting a bit peckish, anywhere I could get a bite?"

"There should be some stands, feel free to help yourself, Johnny. I'll join you once this bout is finished."

The Aussie adventurer got up and out, just hearing how much sumo wrestlers eat in a day worked up his appetite. "Anyone wanna tag along?"

Pippin shook her head while Harry got up. "I could go for a drink, since I won't be driving around here."

There was a dango stand just outside the dohyo, serving up some colourful chewy balls filled with sweet red bean paste. "I never thought I'd be having beans as a dessert." Johnny remarked as he ate his dango. He and the pilot couldn't control their appetites, they ate so much their bellies were now softer than the squishiest dango. "We should bring a pack of this stuff over when we get ho-"

But before the leader of the adventurers could finish his sentence, he noticed a familiar figure out of the corner of his eye. "Hey! Stop right there, Sinister!"

Sam bolted out immediately, filling his cheeks with the takoyaki balls he swiped from a different stand. "That statue is mine, Thunder!"

The three made chase through the streets of Kyoto, their bellies bouncing under their now tight shirts. "Gah... I shouldn't have eaten so much." Harry groaned, he had to take a breather (and another bite) after running for only ten minutes. "I didn't think it was that fattening.

They didn't have to keep up the pace for long, as he and Johnny had the baron cornered in an abandoned part of town. "Once this is over you're definitely going to jail!"

Sam just growled, backing up against the wall as much as he could, only to knock his hand against a hidden switch. The floor immediately opened up beneath the three men, sending them rolling into a hidden treasure room. A silvery dragon statue was right in the center of a large dohyo. "Ugh, I wasted my time coming here for some obese looking lizard?" Sam grunted. "How am I going to fit this into my collection?"

Johnny hated to admit it, but the dragon was too large for the museum as well. The only way one could even tell it was the mythical beast was the head and claws, the statue looked like a massive blob of fat with a kesho mawashi. "I suppose this is some sort of sumo dragon? I don't know what the connection between them is."

The statue's eyes started to glow under the exposed sunlight, then the light shifted to the pearl in its claw. "Umm.. What is it-"

Three beams of light shot out, hitting the three men. "Gah!" Johnny winced, tumbling onto his side. "What's going on?"

Sam wasn't going to wait around and find out, nor was he about to leave empty handed. He made a lunge for the statue, only to find himself rolling around. "Wha-my figure!!"

The once slim baron was ballooning instantly, fat was piling up by the second. Johnny and Harry laughed at his misfortune, only to stop once they felt their own bodies fatten up. The three could barely stand from just how much weight they were putting on in a short amount of time, so they were mostly flailing their stubby limbs around like tortoises stuck on their shells.

The evil baron's belly was ten times its normal size now, it was perfectly round with stretch marks along the side. It was so huge it was blocking the view to his feet. "Help!! You're not gonna just leave me stuck as a giant bowling ball are you?!"

"You want us to help? We're getting too fat to move here too!" Harry retorted, most of his weight had gone to his massive bubble butt and thunder thighs. He tried his hardest to even sit up with no luck, his massive pair of cheeks were soft yet firm, keeping him held down. Johnny couldn't help but blush whenever he watched it swell.

The adventurer in question was swelling twice as fast, groaning as his clothes became nothing more than tattered bits of cloth on the ground, whenever he opened his mouth all he could do was moan at his fattening pleasure. His cheeks puffed up and his once sharp face softened with his triple chin, he had a pair of moobs so large they would need a triple D cup bra to fit it and then there was his belly. His massively flabby gut that was already taking up a quarter of the room he was in.

The statue eventually stopped glowing, but only when the trio were now completely immobile. "Ugh, I'd smack ya if I could feel my hand!" Harry snorted at Sam. "Hey Thunder, stop touching my butt."

"Uh, it's not me. I thought you were slapping mine."

"Well if you're both quite finished, how are we supposed to get out of here?! What was that statue cursed? Why are we suddenly huge like those Sumi guys?"

"That's Sumo, or Sumotori if you want to be specific." Dr Kilroy and Pippin snickered from behind the statue. "I only meant for it to fatten him up, but I didn't count on you both to get caught in the pearl's light. Erm, sorry boys." The old professor awkwardly admitted.

"Wait, this was your doing? But-"

"How did I know about the statue's abilities? Well I was just on the phone with one of my old colleagues a few weeks ago and he told me all about this statue's pearl and its fattening abilities. No one knows how it does it or why but I must say, it's useful for taking out greedy treasure hunters." Kilroy admitted. "But now we'll have to roll you out of here."

"Great.. So when is this gonna wear off?" Harry asked.

"W-wear off?"

The three blobs looked on in horror, it looked like they would have to exercise to shed the weight. That is if they were able to move. Yet there was something oddly fascinating about their blubber, like they were being enveloped by the world's comfiest pillow. "Eh, it'll probably disappear in a few days." Johnny thought as Pippin rolled him back to the surface. "Aw well, at least we're on vacation."