A/N: This is my first (Naruto x TWGOK) crossover fanfic, and it's also my first time using Naruto protagonists (Naruto: We're much cooler than the Akatsuki-ttebayo! Sakura: Hell yeah! Me: Not so sure…). The prelude talks more about how Keima gets in the world of Naruto (with a pinch of xxxHolic), not much about the Naruto crossover part. Oh well, guess you can't fit everything in one chapter… (Erushia de Luto Ima=Elucia de Lute Ima=Elucia=Elsie)

Prelude

Katsuragi Keima, seventeen year old, second year Mai-High student, avid bishojo game player (gal games), also known as the God of Conquests, is in his room, doing what he usually does whenever he's awake: playing a new, ninja-themed gal game, "A Shinobi's Journey". Rumors say this game is unbeatable, that it sold over millions of copies to world-wide gamers but none, even the most skilled, have beaten it. This gal game, different from other similar creations, is a many leveled one. Each level has a unique protagonist with her own personality, and each level has its complex, although one-of-a-kind story. Unlike the game, "Crayon" (A/N: Read manga chapter 17/watch anime episode 4/look it up online), "A Shinobi's Journey" has no bugs, no loops, but is still unconquerable and will remain unconquered… or so ninety-nine point ninety-nine percent of those gamers think. The God of Conquest, once he heard the rumors, sped to the Game Center at Maijima Wai Wai Road, snatched a copy of said "new, unbeatable" game off the shelf, bought it, ran home, and locked himself in his room, all that at in two minutes record time (if he really puts his heart into it, Physical Ed should be no problem for him). Otoshi-gami, always interested in new, difficult challenges, decided to defy the sayings and is currently trying to conquer the heroines.

Knock-knock-knock.

"Kami-nii-sama!"

"Tsk… Bothering me again…" thought Keima without taking his eyes off the screen of his PFP. "I can't even concentrate well…"

More knocking.

"Kami-nii-samaaaa!" cried Elsie in a desperate voice.

No response from the other side of the door.

More pounding.

"KAMI-NII-SAMA! Please open the door, this is very urgent!"

"It'd better be, or I'll make you apologize a thousand, no TEN thousand times for disturbing the God of Conquest while he is playing video games." With a vein mark on his head and the latter about to explode, Keima got up from his bed and opened the door violently.

Elsie, who was pounding with all her might and weight on the bedroom door, surprised by the sudden emptiness of the doorway, lost her balance and fell forward. Keima swiftly dodged out of the way, eyes still on the PFP screen, leaving the poor little devil crash face to face with the floor.

"Waaaaaaa! Kami-nii-sama! That was mean!" wailed Elsie.

Keima shrugged, pressed some buttons on the game console, and then spoke.

"It's not my fault; you were the one leaning against the door in the first place."

Elsie pouted at her "brother's" cold reply.

"Leave that aside, Elsie. What did you have to say for it to be so important to disturb me while I'm playing gal games?"

"Bouh," said Elsie, now sulking because her brother isn't caring about the "Imouto-moe" (pun from Keima's 'BMW' where the 'W' represents 'Wonichan-moe' (Love for her brother)). "It's about a new order from the boss; about capturing loose spirits."

"And… That's… IT?" A tick mark appeared on Kami's forehead every time he emphasized each word. Even though his eyes were closed and his mouth was in a slight, twitchy smile, the little devil felt a dark aura leaking out of Keima and her sixth sense told her to prepare to flee.

The human bomb blew up. A huge Keima was running around the house, chasing the minuscule Elsie, waving his PFP in the air, ranting about not to waste his time when he's playing games. Elsie tried to calm Keima down, by apologizing many times, but her effort was useless. Keima took Elsie by the collar and was about to throw her out of the house when she tried one last plea.

"But Kami-nii-samaaaa! I just wanted to tell you that this time, we're going to have to capture Weiss from another dimension!"

That stopped the cat from kicking the mouse.

"… Another… dimension?"

"Yes, Kami-nii-sama, we're going to have to go to the Ninja Realm."

"Ninja… Realm?"

"Yes, but can you put me down first? Then I can explain."

The dumbfounded gamester loosened his grip on his victim.

"We're going to travel to another dimension?"

"Yes!" answered Elsie, relieved that Keima understood what she said.

"But how are we going to get there?"

"First, we have to meet a shop owner named Yuuko-san in another dimension."

"And how are we going to get to another dimension?" asked a confused Keima.

"Oh, the chief installed a one-use round way ticket in my Celestial Robe to go from this dimension to another, and from another back again." Elsie took out the robe in question. "Edo, first I wrap this end across your waist, then I wrap the other end across mine…" As she was saying the instructions out loud, she was doing them and soon enough, the Otamegane and the No-good Demon found themselves in a pretty awkward position…

"There!" exclaimed Elsie suddenly with a content smile on her face. "Destination: Yuuko Ichihara, shop owner's dimension!"

"W-w-w-wait! I haven't saved yet!" screamed a desperate Keima, pressing the PFP's buttons frantically, already bleached with white light.

In a flash, the two Runaway Spirit Buddies disappeared.

At Yuuko's Dimension…

A flash of light appeared out of nowhere in the middle of Yuuko's green lawn, lighting everything inside the kekkai put around the shop. As the blinding light died, two dark figures appeared. The taller one scanned his surrounding, then made a hush sign to the other, pointing at a lady in a long kimono, sitting on a chair, sipping tea as if nothing happened. She didn't even notice that two human appeared out of thin air in her private territory, or so she seemed.

All that spinning made Keima dizzy; he took some time to recover from that. The only words that he had the strength to utter were: "So… dizzy…" After five minutes, the boy managed to return to normal.

"Elsie, why didn't you teleport us directly to the Ninja Realm?" he whispered to his partner.

"The boss told me to visit Yuuko-san first since she was the one who made the teleportation device installed in my Celestial Robe. We have to give Yuuko-san a payment for it, so…"

"So where are we now?" hissed Keima, still clutching his PFP.

"Supposedly at Yuuko-san's Dimension."

"But where?" demanded the boy with menacing eyes.

"I thought that we'd land close to Yuuko-san's shop, not on a private lawn…"

"It's because you were fated to come here."

It was the lady in the kimono who spoke. "If you are here, it means you have a wish to make."

"Ah! Yuuko-san! I'm sorry, I didn't mean to intrude!" explained Elsie with a bow.

"Have a seat." The woman waved her hands towards two chairs. "I will fulfill your wish, in return, for an equal price," she continued. "But first, the payment for that device?"

Elsie extracted a maroon wine bottle from her Celestial Robe. She handed it with two hands bowing again, "Here, Yuuko-san. The oldest wine, made from the unique tears of an angel and a devil who shared an impossible love. It is one of the rarest treasures that we, devils of New Hell, have in our possession."

"Lovely! Watanuki! Get the wine glasses out! We have guests!"

A boy about the same age as Keima appeared out of the shop with what Yuuko demanded, muttering under his breath about something like "Not your servant" and "Alcoholic". He set the table, and poured the wine.

Addressing the waiter, the shop owner said, "You too, Watanuki, sit with us for a bit."

Obeying his master's command, he sat facing Keima, who was sucked back into his own 2D world. "This guy looks like me," he thought. "Except for the fact that he's constantly video-gaming…"

Out of nowhere, a black round ball hopped its way to the table.

"Wine! Wine!" It sang happily, and bounced on Watanuki's head.

"Get off, you fur ball!"

"Wine! Wine!"

Elsie eyed the black thing with curiosity; Keima didn't notice anything: he was too focused on conquering the heroines.

"That," Yuuko pointed, "Is Black Mokona Modoki. He's very playful, and likes wine as much as I do." She lifted the wine glass and tasted the blood red liquid. "So, Elsie-chan, what request brings you here?"

"Ah yes, I need something able to transport the two of us to another dimension, and after a while, back home again."

The Witch of the Dimensions thought for a bit, picking out the best solution for this situation. "Normally, I'd have one of the Mokonas to do it, but since White Mokona is with Shaolan and company and I need the Black Mokona, I'll lend you this ring." Yuuko held out her hand, on it a golden ring crested with a green emerald pearl, the ring leashed on a metal chain. "Put the ring on to go to the Ninja Realm while holding hands with your partner. It will teleport you there. When you want to come back, do the same thing, and you will return to your dimension. When not using it, wear the ring around your neck. The ring is only effective for two trans-dimensional teleportations; when the pearl turns black, it becomes a normal ring." She handed the ring to Keima; seeing that he didn't budge one bit, she gave the ring to the awed devil. "As for the payment, I'd like two or three captured Weiss and a bottle of ninja sake."

Elsie's face darkened a bit. She was twiddling her fingers when she spoke, "Um, I don't know if I can give you Weiss—"

"I already talked it out with your chief. She said nothing against that and is informed about the transaction."

That sentence made Elsie's cheerfulness come back. With a bow, the devil from New Hell thanked the Witch of the Dimensions with all her heart and immediately caught her buddy of guard by taking his hand in hers and putting the ring on.

"Kami-nii-sama, I can't wait! Let's go right now!"

"Elsie! Wait! I'm not rea—"

The Otamegane didn't have time to finish his sentence and vanished with the demon from Yuuko's Dimension.

"I haven't saved yet!" thought Keima desperately.

In the Ninja Realm, Land of Fire, Konohagakure (Naruto's Dimension)…

Two people materialized in a deserted street, surrounded by puffs of smoke. One was rubbing a PFP dearly to his face while the other took in the scenery around her. It was a bright, sunny day, clouds moving lazily in the blue sky. On the side of a rocky mountain, five faces were carved into the stone: the first four were those of men, the last was the figure of a charming lady.

"Wah! It's so beautiful here, Kami-nii-sama!"

The latter didn't answer, still hugging his PFP.

"Geez, Kami-nii-sama, the air here is fresher than the one in the city, and all you care about is your games." When Elsie looked at her brother, she noticed someone coming in their direction. With her Celestial Robe, she wrapped herself and Keima to make them invisible and unheard. The teenager had blond, spiky hair and sat on the stairs of the Ninja library. The Otamegane finally put his game on pause to observe the Ninja World. Elsie first handed him the metal necklace.

"Put this around your neck and don't put the ring on, no matter the situation."

Then the demon noticed something.

"The pearl turned red, Kami-nii-sama! We will only be able to use it once; the time to go back home."

"I hope that we will be able to finish the quickly so I don't get a backlog of games," muttered Keima under his breath. Before he could say anything else, a girl with pink hair appeared, followed by a guy with white skin and short, black hair. Immediately, the runaway spirit sensor went off. Luckily, the Hagoromo was soundproof.

"Naruto!"

"What's up, Sai's coming too?"

"I ran into him in the book room."

"What the… My plan for the two of us to walk together as a date is ruined!"

"Even if we had that kind of spare time, we'd be studying ninjustu!"

"Not studying… You two can sure go on painful things…"

"It's not just for your body; you should train your mind a little too. You really are dumb!"

"Sakura-cha-an, you said too much…"

The two hidden non-ninjas were eavesdropping on the chat. They were confused when the term "ninjustu" popped up in the conversation. They didn't dare move away, because they wanted to ask the blond boy, who seemed the most normal (Keima thought, "Who would dye their hair in pink? Seriously, why do those runaway spirits always go for the weird ones?" and Elsie thought, "The guy behind that girl sure is creepy; he looks like a ghost…") more information on the Ninja Realm. After listening to Sai talking about nicknames and calling Sakura a hag, then seeing said hag slapping both boys on the face, the two eavesdroppers followed the trio to Konoha's hospital. The duo decided to wait outside for the guy named Naruto…

A/N: For those who are not sure when in the Naruto series Keima landed in, it's after Sai and Yamato joined team 7 and failed to take Sasuke back.

Reviews give me the energy to write, so please give me your opinion of the story and where it's going, I really would appreciate it.