Ok, my first real story on here, there aren't any like this one so far so reviews are greatly appreciated. The story takes place immediately after Mark of Athena and a little while after Vento Auero, assuming the jojo timeline is slightly retconned. Ok anyway, to the story!

Chapter 1

"Festus, raise the sails. We've got some friends to save."

"Hey wait a second," Hazel suddenly said, "I just remembered something."

"Huh? What is it?" Jason asked, hoping it was good news. After the day they had, they really needed some.

"When Percy and Annabeth fell into Tartarus," She started, "they weren't alone. Someone else fell with them!"

"Huh?" A shocked Leo replied, "someone else? Who?"

"Some girl, maybe seventeen or so, I'm not sure," Hazel answered, "but she was innocent, and now she's trapped down there too!"

"Oh crap!" Leo shouted, gripping his hair, "now I got someone totally uninvolved hurt!"

"Leo! Leo!" Jason shouted, holding his friend's shoulders, "calm down, no one blames you for this!"

"I wouldn't be so sure about that."

Everyone blinked and turned to where the new voice came from. They saw a man, maybe in his early twenties, wearing an odd gray and green muscle shirt and an even odder black and green hat.

"Nice boat you have there," he said to them, in an "i'm trying to keep my anger under control" tone, "must have been expensive. You must be rich to afford it, rich enough to pay for my Ferrari that you blew up along with the rest of the parking lot!"

"Whoa, wait a second," Jason said as he walked up to the man, "who are you anyway?" The man glanced down and saw that Jason was carrying his sword. Oh crap, Jason thought, he can see my sword, he must be a mortal who can see through the mist, now he thinks we're threatening him! As if reading Jason's mind, the man pulled out a revolver from his pants and pointed it at the Son of Jupiter.

"My name is Guido Mista," He snarled angrily, "and I loved my car." Seeing Mista's drawn gun, all the demigods readied their weapons, preparing to strike if necessary.

"Mista, what the hell are you doing?!" someone shouted. Everyone looked up and saw another man show up, this one looking around seventeen with blonde hair and wearing a black coat, his blue eyes seeming friendly yet cold at the same time.

"Giorno," the one called Mista said, "I heard these guys talking, they know what happened back at the parking lot. They know what happened to Trish."

"So, you guys are the ones behind the disaster over there?" The one called Giorno asked.

"Jason," Leo called out, "we don't want to be around these guys!"

"Huh?" Jason, confused, asked, "because they're mortals?"

"No, not that!" Leo replied, his eyes looking somewhat fearful, "I can smell it. I've lived on the streets enough to recognize this smell. These guys are mafia!"

Mafia?! Jason mentally panicked, How the hell did we get mixed up with mafia?! Mortal or not, it's practically a death sentence to piss off the mafia!

Giorno smiled. "Your friend is smart," his smile quickly turned into a frown, "but I wont tolerate terrorism in my cities! Especially when that terrorism ruins seven italian sports cars my group had just purchased and causes the disappearance of one of my closest friends!"

"Giorno," Mista started, "I can't help but notice that these guys are all carrying weaponry. No one uses a gladius anymore. And exactly where did they get a giant flying boat from and why is there a greek statue on it?"

"That…does cover pretty much everything unusual," Jason admitted.

"Jason, tell them!" Leo shouted, "everyone knows not to mess with the mafia unless you want to get yourself and your entire family killed."

"Hey, you, with the gun!" Piper suddenly shouted, "Mista, right?"

Mista glanced at Piper with confusion.

"Yeah, that's me," he confirmed, "what is it?"

"I'm probably not in a position to say this, seeing as how I'm held at gunpoint," Piper began, "but I think you have some weird bugs on your gun."

Naturally, everyone looked at Mista's revolver. Jason, who was closest, saw that Piper was right, there were some weird bugs on his gun, but they didn't look like guns. And they each had numbers on them.

"You can see them?" Mista asked, his voice sounding even less calm. Jason nodded his head in confirmation, as did Piper and pretty much everyone else who got a good look. "Giorno!" Mista shouted, "these guys are Stand users too!"

Jason looked at Mista in confusion.

"Huh? Stand? What's that?"

"Don't play dumb with me!" Mista shouted, "if you can see a Stand you can use a Stand, so call your Stand out!" No one knew what they meant.

"Mista," Giorno said, "the smart one. Call out your stand and hit his shoulder."

"Got it," Mista responded as he raised his gun towards Leo, "SEX PISTOLS!" He fired his gun at Leo. Leo, having been shot at a few times, managed to dodge the bullet, but the bullet curved towards him. Those weird bugs, Jason realized when he saw two of them on the bullet, they're steering the bullet!

"Try to avoid it!" Mista shouted, "my Sex Pistols will keep following you!"

Leo turned around and faced the bullet, swinging his arm and throwing a blast of fire at the bullet. The force of the flames caused the bullet to swerve off course and for the two weird bugs to cry out in pain.

"AHHHH!" Mista cried out in agony, seeming to suffer as much as the weird bugs. "what kind of Stand was that?!"

"Wait a second, Mista," Giorno suddenly said, "I don't think that's a Stand!" Mista collapsed on the ground as Giorno approached Jason. "Sorry about that," Giorno said as he looked Jason in the eye. "Your name is Jason, right? It would seem we both have some explaining to do."

"Do we?"

"Our friend is now missing because of the parking lot randomly exploding," Giorno explained, "and you know why. Besides, we have both shown that both sides possess strange powers. You seem like the leader here, right? It would be in your best interests to work alongside me."

The threat, Jason thought, was made clear. If you don't help me, then the mafia will kill everyone you ever spoke to since you were born, something like that.

"Alright," Jason said, "lets start with who you are."

MEANWHILE

The Camp Jupiter armies were in NYC, preparing for their attack on the greek camp in Long Island. Knowing that the mortals can't see their weapons, Octavian and Reyna allow them to carry weapons openly. Based at a hotel, Octavian goes to get food, making around ten fully armed soldiers go with him just to boost his ego. Along the way, they get lost and bump into Two muscular asian men, one wearing a black cap and the other having a large Pompadour hairstyle.

"Excuse me," one of the legion asked, "we're kind of lost, do you know where Walmart is?"

"The walmart?" the one with the hat said, "its in the completely opposite direction." He then squinted hard at the solider, "you're not from around here, are you?"

"No," the young soldier responded, "we're all coming from San Francisco."

"I thought so," the man with the Pompadour hair said, "New Yorkers would know better then to carry golden weapons out in the open." The soldiers all gasped.

"He can see them!" Octavian shouted, "he must be either a monster or a greek!" The ten soldiers all pointed their spears and Swords at the large men.

"Whoa, whoa," The man with the Pompadour said, waving his arms around frantically, "did I offend you guys? I'm sorry, please don't hurt me!" The man with the Pompadour then knelt before them on the ground, shaking in fear.

Hmm, Octavian thought, this guy seems weak, maybe he looks tall and strong but is actually a big softie. He's probably just a mortal who can see through the mist. Octavian glanced at the other man. But his friend with the black cap seems calm and collected, like he's fought many battles before and much stronger opponents. That guy definitely isn't normal, I'm going to need to play this carefully. Maybe if I come out strong and confident, we can let it seem like none of this ever happened. Octavian walked through the other soldiers, pointing his sword directly at the man with the Pompadour.

"It seems we might have a misunderstanding," Octavian said with confidence, "you can see our weapons, right?"

"Yeah," the man with the Pompadour replied, "we can see them."

Hmmm, Octavian pondered, maybe I can try manipulating the mist. If he's a monster or demigod, this might work.

"You didn't see anything," Octavian said as he snapped his fingers, the Mist shifting slightly, "your stupid hair merely got in the way of your vision."

"Oh boy," the man with the black cap said, "now you've done it."

"Huh?"

"Hey asshole!" The man with the Pompadour shouted as he stood up angrily, "WHAT DID YOU SAY ABOUT MY HAIR?!" As Octavian backed away slightly, the man punched quickly, slamming Octavian into a nearby trashcan.

"AHHH!" Octavian screamed as he got up, "WHAT THE HELL DID YOU DO TO ME?!" Everyone looked and saw Octavian's back seemed to be connected to the trashcan. No, Octavian realized, not connected, its like the Trashcan is part of my body now! Two other soldiers tried to attack, only to be knocked aside quickly by the enraged man.

"RETREAT!" Octavian shouted, hobbling along as the soldiers tried to make a break for it.

"Going somewhere?" the man with the black cap said, suddenly appearing before them.

"CHARGE THROUGH!" Octavian cried. The legion soldiers tried to charge with their spears, but as soon as they moved, they noticed all their spears and swords were gone, lying in a pile behind the man with the black cap.

"Jotaro!" the man with the pompadour said, "these guys, what should we do with them?"

"I don't know," Jotaro replied, "its possible these guys are Stand Users, seeing as how they carry gold weapons. I doubt ordinary street thugs would carry solid gold spears."

"Octavian!" someone shouted. It was Reyna, running through with her weapon drawn and with at least twenty soldiers behind her. "Octavian, what's going on? who are these guys?! and what happened to you?!"

"Reyna!" Octavian shouted, "these guys attacked me! They have some weird powers!"

"Powers?" Reyna asked as she turned to the two men in a fighting position, "what powers do you have? Are you monsters or demigods?" The man with the black cap raised an eyebrow.

"Demigod?" he said before chuckling a little, "I've been called a monster before, demon too, usually delinquent, but never demigod. I can assure you though, I'm 100% human."

(REYNA POV)

Hmm, Reyna thought, he's definitely not a normal mortal, but I don't think he's a monster. I'm pretty good when it comes to seeing through the mist, and these guys are definitely human. Are they demigods?

"Who are you guys," Reyna asked, "where are you from and who are your parents? Tell me everything."

"Okay," Jotaro responded, "My name is Jotaro Kujo. Born and raised in Japan. Father is Japanese Musician Sadao Kujo. Mother is Holy Kujo, formerly Holy Joestar. This guy over here is Josuke Higashikata. Born and raised in Japan. Mother is Tomoko Higashikata. Father is Joseph Joestar."

"Wait, Joestar?!" One of the soldiers asked, "as in Joestar Real Estate?"

"Yeah, thats the one," Jotaro confirmed, "Joseph Joestar founded the company."

"And you're Jotaro Kujo, the marine biologist?" Another soldier asked, "I've read your books, you're a genius!"

"Yeah, thats me," Jotaro confirmed with a slight grin, "always a pleasure to meet my fans."

"Wait!" Reyna shouted in a cautious tone, "we need to be careful, he could be lying."

"Yare Yare Daze," Jotaro groaned, "do you want to see my Driver's License or something? But that aside, I wanna know more about you, like who are you and why are you carrying weapons?"

"I want to ask something similar," Reyna replied, "like how can you see our weapons and how did you do…whatever it is you did to Octavian?"

"Okay, I think I can explain this quickly," Jotaro said calmly, "your name is Reyna, right? Reyna, look closely at me, do you see anything coming out of my right arm?" Reyna squinted her eyes and stared at Jotaro's right arm. She nearly gasped when she saw it, a pale, slightly transparent arm was sticking out of Jotaro's arm.

"What the hell is that?!" Reyna shouted, "what is that thing?!" Everyone else glanced at Jotaro's arm but no one else saw anything.

"Josuke," Jotaro called, "Reyna here is definitely a Stand User, but she doesn't know it yet, this must be her first time seeing one."

"Huh?" Octavian said from behind Jotaro, "that weird pale arm growing out of your own arm, what are you saying?!"

Huh? Why can only Octavian and I see it? Reyna wondered.

"It's simple," Jotaro explained, "only a Stand user can see a Stand. Since you can see it, you must be a Stand User, but you might not realize it yet."

"Well thats not always true," Josuke pointed out, "I've seen a few stands that everyone can see, but ours aren't like that, only stand users can see our Stands."

"Okay can someone please just say what a Stand is?!" Octavian irritably shouted.

Chapter one ends here. Please review :)