This is my first crossover, so hopefully I'll get all the information from both series correct.

Also, this is supposed to be the Tenth Doctor, but I missed some key episodes. It occurs after Donna Noble is lost, but again, I missed that episode so I don't know all the mitigating circumstances. It could be the Eleventh Doctor, but I haven't actually seen the "New Who" so I don't know much about his personality. I can watch the back episodes, and I'll edit as much as I can after I do. Thanks again for reading and reviewing! —JCroe

~1~ Doctor and Esper

"Hmmmmmmm~." The Doctor sighed. He'd been searching this city in Japan high and low for an energy signature that only manifested in time distortion, but he couldn't seem to find it. The TARDIS had shown that it was somewhere in the city, but the Doctor just couldn't seem to locate it. The device he was using suddenly gave off a low buzzing alarm. "That's interesting. Not what I'm looking for, but it's worth checking out," he said to himself.

He pulled out his Sonic Screwdriver and meddled with a nearby lamppost. He proceeded to walk three times around the lamppost, clockwise, eyes closed. He opened his eyes, and the sight before him astounded him.

Before him, the landscape was unchanged, though it appeared entirely devoid of life, and an eerie duskiness pervaded the whole area. That wasn't what he focused on, though. His focus lay in the some-hundred-feet-tall, glowing, transparent, and vaguely humanoid giant standing in the heart of the city. If it had eyes where what appeared to its head was, it would've been eye level with the tallest skyscraper in the city. "Oh dear, this is not at all what I expected," he said.

The giant started attacking the buildings in the city. The Doctor ran in to get closer. A myriad of miniscule red dots started lining the sky, whipping around the giant. They formed a circle around the giant's arm, and spun around it, getting faster and closer with each second. A few moments later, the arm was severed, crashing to the ground. The giant swatted at the red dots, but they buzzed around it. One of the dots broke out of formation, flying towards the Doctor. As it approached, it turned out that it was a large transparent red orb, with a glowing red humanoid figure inside it. "Who are you, and how did you get here?" the figure asked as what the Doctor figured were its companions continued to combat the giant.

"I'm the Doctor, and I don't exactly know where 'here' is. Who and… what are you?" the Doctor asked hesitantly.

The orb dissipated, as did the red glow around the figure. What was left was nothing more than human, a teenage boy by the Doctor's reckoning. "My name is Itsuki Koizumi. I'm normally an ordinary human, but here in the 'Closed Space,' I am one who combats the Celestials. I guess in regular terms you might describe me as an esper," the boy said politely.

"I see. So that giant is a Celestial, you said?" the Doctor asked, followed by a nod from Koizumi. "And this is called a 'Closed Space,' what does that mean?"

"'Closed Space' is a term we espers use for an area that has a second dimension parallel to it, formed whenever a certain being's emotions run rampant. This being unconsciously creates 'Closed Spaces' and Celestials, and the Celestials destroy whatever they can here, with no bearing on the outside world."

"Or so it would seem," the Doctor retorted. "If it had no bearing on the outside world, then why destroy the Celestials?"

"The more they destroy in this world, the farther this world expands. If 'Closed Space' were to encompass the entire world, the world as we know it would end, and be replaced with one that was different but very similar. And you still haven't explained how you entered the 'Closed Space' to begin with," Koizumi said with a fox-like smile.

"I detected a parallel dimension and proceeded to investigate," the Doctor said nonchalantly. Koizumi showed only a very slight reaction. "You don't think it's odd that you've met someone who's able to detect and enter parallel universes, do you?"

"Not really. I've seen my share of abnormal people apart from my group. I also know a time traveler, an alien, and a girl somewhat akin to a goddess, as I mentioned before."

"Actually, two of those descriptions apply to me as well," the Doctor said, beaming, eliciting a rising of an eyebrow from Koizumi.

"So, who are you really?" Koizumi asked again.

"I told you, I'm the Doctor."

"So you're saying I should refer to you as just 'Doctor?'"

"Yes."

"Don't you have a name?"

"That is my name."

"I don't believe you."

"You have no reason to. You still should."

"I see. I won't press the matter any further, then."

A sudden crashing brought attention back to the Celestial. It had been almost entirely cut down, and it vanished as it fell to the ground.

"Ah! The sky, watch!" Koizumi exclaimed.

The Doctor looked up as cracks began appearing in the dark sky. Cracks that seemed to stream down light. More and more cracks appeared, and they all suddenly burst, leaving the pair in the regular, normally lit world.

"If you are what you say, Doctor, there are some people you should very much like to meet."

"Oh, why thank you very much, Mr. Itsuki Koizumi. I would very much like to meet your friends the time traveler and alien," the Doctor said, once again beaming.

"I don't suppose you have a cell phone on you?"

"Why, yes I do have one. Let me see yours so you can call me anytime." The Doctor took Koizumi's phone and programmed his own number into it. "Call me if you have any trouble with this goddess of yours, yeah?"

"Certainly."

"OOOOOOI~! Koizumi!" a boy down the road shouted.

"Ah, a friend of mine," Koizumi said, grinning like a fox. "Hey, Kyon, what're you doing all the way out here?"

"My mom forgot to pick up something she'd ordered a while back for my sister, so she sent me to go pick it up," Kyon said with a sigh. "Such a pain." Kyon looked up, meeting eyes with the Doctor. "Oh, is he part of your… crew?"

"Ah, no, I met him in the 'Closed Space,' surprisingly," Koizumi smiled.

"Geez, what's with that grin?" Kyon asked, grimacing. "It's always plastered on your face and it's kinda annoy— wait, you met him inside the 'Closed Space?' I thought only you guys were able to enter without assistance." Kyon eyed the Doctor suspiciously.

"I'm the Doctor."

"Doctor who?" Kyon asked uninterestedly.

"Just 'Doctor,' please."

"So what are you? Alien, time traveler, or esper?" Kyon asked with a sigh.

"The first two," the Doctor said nonchalantly.

"So your spaceship is also a time machine?"

"Oh, yes. It's called the TARDIS, which is short for Time and Relative Dimensions in Space."

"Yeeeeeaaaaaah~ that doesn't really work well in Japanese, only in English," Kyon grumbled. "How do you speak Japanese so fluently?"

"That would be one of the features of the TARDIS. Those who travel through time and space in it are able to understand any language they encounter, and their speech is automatically translated so anyone they encounter will understand them. However, if the speaker knows the native language and speaks it, something goes a little wonky with the translator. Found that out when I went to Pompeii before Vesuvius blew, except it actually wasn't a volcano and it's a lo~ng story, but in short talking to the Romans in Latin sounded to them like Celtic."

"Riiiiiii~ght," Kyon said skeptically. He casually looked down at his watch. "Sorry, I have to go. Unlike you I don't have all the time in the world."

"I too must go," Koizumi said. He and Kyon walked off in the same general direction. Koizumi smiled and waved to the Doctor. "Goodbye, Doctor. I will contact you soon, I'm sure."

The Doctor waved back, then turned and continued his search for the abnormal temporal signature.

Hope you like it! Read and Review please!