The black Impala was going over the speed limit on Route 66. However, the driver was unconcerned about adhering to speed limits on a deserted road in the middle of the night, with 1980s music playing on an old turntable and vampires, werewolves, ghosts, and other creatures causing havoc.
"Can you repeat what we're doing in the middle of the desert?" The driver asked, annoyed by the many hours of driving he had had to endure. "We usually investigate after the crime has been committed."
The driver was a young man, probably around nineteen or twenty years old. He had light brown hair and blue eyes, and he wore a dark leather jacket over a t-shirt, tight jeans, and running shoes.
"This is better. It means no one has died yet," the passenger next to the driver said confidently.
The driver let out a gasp. "All right. Tell me what is wrong."
"It appears that the temperature has dropped suddenly," the passenger said.
The driver let out another gasp. "Oh, Sam. I thought you had learnt that terminal excursions are common in the desert."
"They're not when they happen during the daytime," Sam replied. "It appears to have dropped around noon. It has remained stable since then. It neither rises nor falls below zero."
"Do you think it's some demon?" the driver asked.
"I doubt it was their work. They don't normally act in isolated areas," Sam said, shaking his head slightly. "And I don't even think there's a vampire or a werewolf involved."
"So, it's some crazy witch this time," the driver said, snorting mockingly. "I swear I'll rip their heads off if they just want some fresh air."
"Dean, be serious. How many times did the hunt appear to be simple, only to prove difficult?" Sam warned.
"Tch..." Dean grunted.
Sam and Dean arrived at the area where the anomaly was detected. They got out of the car, and Dean had to admit it was unusually cold for a hot summer in New Mexico.
"There's something," Sam said, looking concerned as the Electromagnetic Wave Detector in his hand went crazy.
Dean looked around. Even if he saw nothing, he couldn't deny that he was uncomfortable. His sense of danger and sixth sense had been honed over the years as a hunter, and he could tell right away that something was wrong.
"They could have hidden it with some concealment magic," Dean explained, turning to Sam. "There is nothing here. Let's go, Sam."
"Uhm... Dean... what is that?" Sam said, staring over Dean's head.
Dean turned and stared in the same direction as Sam. He turned pale when he saw a massive black sphere floating in the sky.
"Hey, Sam... what's the detector saying?" Dean asked, taking a few steps back for safety.
"I think it's about to explode. It's best to put it away," Sam said, turning off the detector for safety. "What the hell is that?"
"Well, I'd say something abnormal." Dean took the gun out of its holster and fired some shots that were sucked in. "Whatever it is, it does not appear to be alive. Is it a black hole?"
"We should contact Castiel. He might know what it is," Sam said.
Dean welcomed the suggestion. A "thing" that was physically untouchable was not one of his preferred opponents, especially since he had no idea if it was alive or what would happen if they hit it wrongly.
"Why didn't the army confine the area?" Dean wondered.
"It is impossible to see for humans," a man said abruptly. "And I have no idea what it is."
Dean and Sam turn towards Castiel.
Castiel was a heavenly angel who used a 30-year-old man as his vessel. He had carefully styled dark brown hair and brown eyes. He wore a brown coat over a black jacket and a white shirt. He also wore a black tie, black trousers, and stylish leather shoes.
"It appears that Heaven and Hell have focused their attention on it. If one of the factions gets their hands on it, they will have an advantage," Castiel stated.
"So this is just an energy ball that can tilt the balance one way or the other." Dean gave an annoyed expression. "Okay, what should we do? Should we leave it here and wait for someone to come get it?
"It will be unnecessary." Castiel nodded to indicate that they should look.
The sphere began to release magical energy. The winds whipped around, lacerating and injuring Sam, Dean, and Castiel. Its shape began to shift and writhe.
"What's going on, Castiel?" Sam asked, hiding behind Dean's impala.
"I've told you. I do not know!" Castiel said, frowning. "It looks like something is coming out of that thing."
A demon? Cthulhu? No, what came out was a young man with blonde hair. He was dressed in simple civilian clothes: a white and blue tracksuit, tight jeans, and running shoes. His clothes had been ripped and burned, and his hair, face, and hands were soiled with ash.
Sam, Dean, and Castiel proceeded cautiously.
The sphere exploded like a bubble after releasing him. The magical energy flooded into his body and merged with him.
"What should we do with him?" Sam asked.
"I say we shoot him and go to Las Vegas," Dean said, pointing the gun at the boy's head.
"No, Dean, you can't do it," Sam said, protecting the young man. "We're not sure whether he's good or evil. And we're not even sure if that "thing" is really gone."
"I hate to admit it, but Sam is right," Castiel said, looking at the boy. "Let's take him somewhere and wait for him to wake up. Then we will question him."
"If you kill him, the demons could still take that power," he said.
Dean sighed tiredly. He put the gun back in his holster and assisted Sam in lifting the boy.
"I hope you make the right decision," Dean warned.
"We can't change the past, but we can use it to create the future."
The boy slowly opened his eyes. The sun shone through some blinds, slamming against his face and making him uncomfortable.
He took a few moments to look around. He found himself in an unfamiliar place. It was an abandoned 1950s-60s hash house. The stench of mildew permeated the stagnant air, irritating his nostrils.
"You've woken up at last," Dean said abruptly.
The boy turned to face the hunter. "Where am I?"
"We are in an old petrol station in New Mexico," Sam answered.
The boy looked at Dean's brother with confusion. "New Mexico? What the hell am I doing in the United States?"
"We should ask for that," Castiel said. "Who or what are you?"
"My name is Yuto Emiya, I'm seventeen and I'm a magus killer," I replied.
"Emiya? That isn't a typical American surname," Sam noted.
"I am Anglo-Japanese. I was born and raised in Fuyuki," Yuto stated.
Dean looked up at the ceiling, bored and irritated. "You believe these are the appropriate questions to ask. You should ask him what a killer magus is."
"I am a mage who kill other mages," Yuto replied.
"You're an assassin who is also a mage," Dean joked, laughing sarcastically.
"I don't just kill mages, but also creatures like vampires, ghouls and other beings like that," Yuto told him. "I kill humans too and all without any remorse."
Sam looked at Yuto's face. He'd noticed Yuto's expression was gloomy, almost melancholy, which contrasted with what he'd just said.
"Anyway, I believe I have figured out what's going on. I admit it may seem absurd, but I believe I arrived here due to a Spatial Dislocation phenomenon." Yuto snapped his tongue, frustrated. "Was I alone or was there someone else when I appeared?"
"You were alone," Castiel replied stoically.
"Was there someone with you?" Dean asked.
"No, there wasn't anyone," Yuto said, summoning a silver and red sword. He gently leaned his forehead over the flat side of the sword and smiled. "I don't feel connected to my familiar anymore. It means the contract is over."
Sam, Dean, and Castiel exchanged looks. They were perplexed.
"I haven't fully understood my situation yet, but I think I'm starting to understand what a mess I'm in," Yuto said, opening a separate space and pulling out a lunch box. "I admit that I unintentionally caused the space dislocation by destroying a damaged magical artefact. I remember getting sucked into a vortex but I don't know what happened after that."
"Do you have a way to go back?" Sam asked.
"There are two problems," Yuto said. "The first is that I have neither the money nor the documents to take a flight to Japan."
"What's the second one?" Dean asked.
"I have no idea if it's a spatial dislocation from point A to point B in the same world or if I ended up in a parallel world," Yuto replied, his gaze fixed on Castiel. "If this is really an alternate one, then I'm stuck here."
Yuto was almost certain it was his case. He sensed the energy coming from Castiel, which he had never seen before. Castiel's essence contradicted everything he had been taught about the foundations of magecraft.
"If you don't have a place to go, why don't you come with us?" Sam asked.
Dean, and especially Yuto, were taken aback by Sam's proposal.
"Your offer is generous. I appreciate the thought, but I cannot accept it," Yuto said, pinching his neck. "My life is something like a curse. To be near me only causes trouble."
"Do you see? He does not want to. We can go now," Dean said, waving the Impala's keys.
"All right. I see," Sam said, slightly disappointed. "Come on, we'll give you a ride to the nearest town. How about that? Are you in?"