A/N: Alright, time for the first ever non-Mew Mew Power crossover. This time, I'm crossing over Infinite Stratos with my favorite game series of all time, Sly Cooper, hence the title: Sly Cooper and his Girls: Season 1. What if, Houki's sister, Tabane created a dimensional portal that sucks in the IS girls (Five of them) and sends them into the world of Ling's favorite game series of all time, Sly Cooper, namely Sly Cooper and the Thievius Raccoonus? Read and find out.

Disclaimer: I do not own Sly Cooper, the great Sucker Punch Productions does, nor do I own Infinite Stratos, or any anime I put in this fic. Note that this is Season 1 of Sly Cooper and his Girls, so this first season will cover the first game in the Sly Cooper series. Please support this disclaimer.

Sly Cooper and his Girls in: Chapter 1: The Thief, the Girls, and One Shock Pistol

(IS Academy, 2030, Ling's Room)

Houki Shinonono, Ichika Orimura's childhood friend and classmate in the presdetous IS Academy, was walking towards Ling's room. 'Ling is gonna be late for class. I wonder why she hasn't answer my calls?' Houki thought to herself as she reached Ling's door and was about to proceed to knock on the door until she heard some shouting. Curious and confused, Houki pressed her ear on the door to listen in.

"…Yeah! You almost have Clockwerk on the run, Sly! Navigate those pieces of metal and get to his head! Now… whacking time!" Ling's voice cheered as Houki head some serious button pressing.

Houki was silent as she opened the door and saw Ling in her causal clothes playing on a PS3, the newest model and her TV showing a game. "Now…. The finishing blow!" Ling grinned toothly as she pressed the Square button on her PS3 controller and Houki saw a anthropomorphic raccoon about 20 years old, wearing a blue hat, blues clothes and wielding a crane with a hook shaped design smashing the head of a robotic giant owl into the lava.

"Woohoo!" Ling cheered as the game shows the ending cutscenes. "Now I need to get the last page of the Thievius Raccoonus and that platinum trophy is good as mine!"

"Ahem!" Houki cleared her throat to get Ling's attention, Ling winced as she turned to see Houki, arms crossed and glaring at her rival for Ichika's love, Ling nervously smiled and sweat dropped.

"Uh… Hi, Houki. What are you doing here? Ahahaha…." Ling hid the controller behind her back.

Houki slowly smiled before turning to Ling's TV to watch the ending credits for Sly Cooper and the Thievius Raccoonus. "So, Sly Cooper, huh? I knew it was your favorite game series since you brag about how great a master thief Sly is in his games. But it's no excuse to slack off."

"I know, I know." Ling looked down, a bit shamefully before looking up to see Houki's face. "But won't it be great if we can join Sly on his adventures and be master thieves on the way, course, Alcott wouldn't like that since she follows the code of justice." Both Houki and Ling laughed at the latter's joke.

"Well, anyway, we need to get to class. Get dressed and head to the classroom." Houki told her as she exited the room. Ling turned off the PS3 after her game saves and got dressed for another day in IS Academy.

As Ling was busy writing in notes as Maya Yamaba was typing them on the electronic chalkboard, an announcement came on. "Houki Shinonono, Huang Lingyin, Cecelia Alcott, Charlotte Dunois and Laura Bodewig, please report to the lab." The female announcer said on the intercom.

"N-Nani?" Cecelia blinked in surprise as she stopped her typing. "I wonder what it's so important they want the five of us at the lab?"

"I hope we didn't do something wrong…" Charlotte looked away shyly and timidly.

"You five didn't do anything wrong." Maya reassured them with a kind smile. "Just head to the lab and await further instructions."

"Roger." Laura did a small salute as the five of the girls headed towards the lab. Ichika was wondering on what's so important that it requires only five of his best female friends.

(IS Academy Science Lab)

"Okay, we're here. So what's this so called important thing we were called for?" Ling asked, arms on her hips.

"Hiiiiii! Little sister!" A cheerful voice shouted out energetically. Houki winced in shock, anime white dotted eyes and all. That voice… it could only mean…

"Oi! Tabane-chan!" Ling waved cheerfully as Houki's sister, the creator of the ISes and super genius waltz in with a cheery smile.

"Hey, Tabane. What brings you to IS Academy after the Phantom Task got away?" Cecilia greeted in a formal and polite formality.

"Well…" Tabane placed her pinky on her chin in thought while Houki spit in disgust. "I got bored from creating ISes for awhile, so I decided I wanna try something new for a change before resuming work on ISes again. " She motioned her assistants to wheel in a large portal like structure. "Ta-dah! I call it, the Tabane Super Duper Dimensional Traveler! With it, you can go to any world of your choosing, may it be anime, cartoons, games or movies. Don't worry, I managed to lock the zombie universes so they won't come into our world."

"You really are an idiot, Tabane…" Houki clenched her fist angrily. "I'm still mad at you for that incident when you created ISes. So what is the purposes of bringing all five of us here?"

"I want you guys to test it out for me. I promise nothing bad will happen." Tabane closed her eyes and smiled as she got out a control panel and pressed the start button. At first, nothing happen.

"Uh… I don't think its working." Laura looked at the machine oddly.

"Stupid machine, work!" Tabane mumbled angrily as she kicked the machine, it emitted a blue hue before it turned began picking up wind and the five of Ichika's friends were being dragged into it.

"T-Tabane!" Houki gawked as she tried to force herself to escape the machine's gravitational pull. "Stop this machine at once!"

Tabane was transfixed by the machine's sudden workings before it sucked in Houki, Cecilia, Ling, Charlotte and Laura and the machine explored after it sucked in the five girls.

Tabane coughed as ashes covered her face. She rubbed her face and saw that Houki and her friends are gone. "My little sister and her friends are lost in another dimension!" Tabane started to panic and ran around the room frantically.

In a blue tunnel like wormhole, Houki and her friends screamed as they fell towards the blue light at the bottom.

(Sly Cooper World, Paris, Interpol Office)

We see a shadowy figure running down the rooftops of Paris before using a crane like weapon to break a chimney before taking a leap of faith on the rooftop of an Interpol HQ. This person is none other than Sly Cooper, the last of the Cooper Clan.

Sly observed his surroundings and got out a binocular like device and used it. On the binocular device's screen, Sly was talking to a nerdy turtle with glasses and a bowtie.

"Sly! Come in! Sly! Do you read me?" The turtle shouted frantically.

"Yeah, I read you. Loud and… well, really loud." Sly sighed as he tried to get the ringing out of his ears.

"Sorry, I'm a little nervous. Trying to break into police headquarters does that." The turtle said timidly.

"Get over it, Bentley. You're safe in the van." Sly reassured his friend. "I'm the thief here- I got to steal that file from Inspector Carmelita Fox."

"Well count on me to be your eyes and ears, buddy." Said Bentley with confidence. "Got their security system totally scoped. To get inside, you have to go through that air vent."

"Alright, I'm going in." Sly nodded as Bentley's screen switched to a pink hippo with goggles, wearing a blue shirt with a scarf.

"And don't forget you got me at the wheel, Sly. All you have to do is grab the file and get back to the van. We'll do the rest." The hippo gave Sly a thumbs up.

"Just keep that engine running, Murray. I'll be down in no time." Sly smirked as he jumped down from the antenna and walked towards a water tower. Upon reaching the steps and at the sides, he sees blue lights coming from the side of the tower. He got out his Binocucom and opened a channel with Bentley.

"Hey Bentley, I must be seeing things. Must be vertigo or something. Look at all those crazy blue lights." He showed Bentley the blue lights.

"Interesting. I heard that master raccoon thieves are able to sense thieving opportunities which manifest themselves as unexplainable blue auras. According to my research, all you have to do is hold on to them and you'll perform a super, sneaky master thief move. " Bentley explained, Sly nodded and he was able to use the move to get around the water tower. Now he jumps on the antennas and got to the air vent. Using his crane, he smashed the gate open and walked into the vent.

Sly got to the end of the vent and saw the place is booby trapped with lasers, which, according to Bentley may fry him if he sets off the alarm. Using agile moves, Sly managed to carefully jump down to the bottom and used his crane to smash the alarm system.

Bentley managed to contact him after such a feat. "Nice job. You're in. Inspector Carmelita Fox's office is behind the red door."

"Roger that… hmm?" Sly at first acknowledged, but was curious about a blue hole in the air above the floor appearing out of nowhere. Then out fell five girls who piled on top of each other. Sly rubbed his eyes to make sure he wasn't seeing an illusion.

"Oww…" Cecilia winced as the five IS girls got off of each other and readjusted their clothes. Houki, however was really, really mad. She clenched her teeth in aggravation and a red aura appeared around her.

"Wait until I get my hands on that idiot sister of mine for creating such a dangerous contraption…" Houki hissed through gritted teeth.

"Where are we?" Laura wondered as she and her friends looked around. It looks like they're in some sort of police station. It was then Ling spotted Sly staring at them with a curious nature. Ling gasped in shock and excitement.

"She bellowed out "Sly Cooper!"

"Wait, how did you know my name?" Sly was surprised by Ling's appearance and sudden outburst that she didn't amazing alarmed the officers in this joint, or they're taking a holiday or something.

"Sly! You have been spotted! Abort, I repeat, abort mission!" Bentley yelled frantically through Sly's comlink.

"Wait… Is that really Sly Cooper?" Houki, now calmed down asked in skepticism.

"Impossible. I bet he's an actor playing that no good thief." Cecilia scoffed as she walked up to Sly and began pulling his face.

"Whoa, hey! What's a cute lady like yourself doing that?"

Cecilia tried to pull off Sly's head, but it won't. Cecilia let go of Sly's face with a sweat drop and scared expression. "He's real…" Cecilia stuttered as she slowly hid behind her friends, peaking from behind Charlotte.

"Now may I ask what beautiful… er, ladies like yourselves doing here?" Sly smiled like a charming prince while crossing his arms, still holding his cane.

"Uh…" The IS girls were speechless on what to say to Sly… Should they tell him this world is a video game and Tabane's portal somehow landed them here, in the beginning of Sly Cooper 1? Or maybe this is a world that is liked the Sly Cooper games and it follows the plots of the games?

Luckily, Houki managed to fool Sly by saying "Shouldn't you go after the police file from Inspector Fox's office?"

"Oh, you're right. Well, I can interrogate you five beautiful ladies later. Right now, I got a job to do. Since you were kind enough to tell me about the police file, how about you girls tag along with me?" Sly offered with a charming smirk.

Bentley on the comlink protested with "No way, Sly! What if they are working for Interpol?"

"Look, Bentley. I don't think they are working for Interpol since they appeared out of nowhere like that through that weird hole I saw earlier. But I can't leave them here. So we'll take them with us. Trust me." Sly convinced his partner in crime.

"Fine, don't say I didn't warn you." Bentley sighed as he cut the connection. Sly walked past the girls and noticed a window opened near the entrance to Inspector Fox's office. After a good thinking of 10 seconds, he used the window to sneak outside and got inside. Before he can get his prize, Sly unlocked the door for the IS girls.

"W-What are we doing? Are we stealing from the law?!" Cecilia gawked as she started to protest. "No, no, no! I won't break the law! My moral code won't allow it!" She shook her head no. Laura, however grabbed her by the ear.

"Come on, do-gooder. If we're stuck here, we might as well join Sly's gang."

Sly saw the safe and got near the dials. Bentley opened the channel with him.

"Way to go, Sly. This is where Inspector Carmelita Fox stashes all her important files. I hacked into the police security mainframe and discovered this vault's combo. Try dialing in: 9-3-7."

"9-3-7… Got it." Sly inputted the correct code and he opened the vault. Inside is a police file with a picture of Sly together by a clip.

"Nice job—you got it!" Murray cheered through his channel. "If you come down through the fire escapes with those five mysterious girls and head through the parking lot, we'll be waiting in the getaway van!"

"Will do, Murray. Be there in a flash." Sly smiled as he got out a card with the face of a blue and white raccoon and placed it on where the police file used to be. He turned to the girls and asked "Are you ready to get out of here?"

"Of course, Mister Cooper." Charlotte closed her eyes and smiled. Cecilia, however was frozen stiffed.

"Oh no… I broke into a police officer's office and stole some valuables. Oh this will go in my permanent record…" Cecilia rocked back and forth, frighten and scared tone.

"Hey, we'll worry about your place with the law later, let's get out of here." Ling nudged Cecilia playfully as Sly and the girls used the window to get on the fire escape.

However, before they can make their getaway, they heard "Criminal!" All eyes turned to a 22 year orange old fox woman with bluish hair, wearing an orange and blue police outfit and wielding a red shock pistol.

"You foolish raccoon! I caught you red-handed!" The fox lady aimed her pistol at Sly and the girls.

"Oh…" Sly smirked like a gentleman. "I haven't seen you since I gave you the slip in Bombay."

"Which reminds me- you need to return the Fire Stone of India to its rightful owners."

"Oh, and I was gonna give it to you as a token of my—" Sly noticed the shock pistol Carmelita is holding. "hey, you know, that bazooka brings out the color of your eyes. Very fetching!"

"You think?" Carmelita smirked with confindence. "This pistol packs a paralzaying punch. You ought to try it, might snap you out of your crime spree."

"And give up our little revedvous?" Sly smiled cunningly.

"Pretty of time for that once you're safely behind bars. I don't know who those strange girls are, but since they're with you, they're also joining you in prison." Carmelita started to charge up her shock pistol.

Ling however, was smirking at Carmelita. "You think you're so tough, Inspector Fox?"

"Ling, what are you doing?" Houki whispered harshly at her friend.

"Be silent! Anything you say or do will be used against you in the court of law." Carmelita said sharply as she aimed her pistol at Ling.

"Sly is only stealing from crooks, yet you're too naïve to see Sly is doing you a favor by putting the bad guys in prison!" Ling placed her hands on her hips and gave Inspector Fox the evil eye.

"Sly Cooper is a criminal who must be put behind bars! Put your hands in the air before I am forced to shoot!" Carmelita growled, a vein popping in her head.

"Oh, and you shoot like a monkey!" Ling blows a raspberry at her.

"Oooh, that's way too far, Ling…" Laura sighed as she shook her head in disapproval.

"What… did… you… say…?!" Carmelita stuttered through raging gritted teeth as she opened fire on Sly and the girls.

"Nice one, pigtail girl!" Sly grinned as he gave Ling a thumbs up as they were running down the fire escape before Carmelita destroyed it. Sly noticed his getaway van, a purple flaming van with the symbol of the Cooper Clan on the side. He motioned the girls to follow him and they did by getting on the van. Sly, inside the van turned to Murray. "Punch it!"

The van speed out of the parking lot while Carmelita shouted out in fury "You cannot escape me, raccoon!"

(Sly's POV)

Once again, my gang and I have given Inspector Fox the slip. I'm surprised on how well she took it.

Sly shows the police file to his gang and the IS girls.

Finally, the police file I have been searching for is now in my possession. With it, I can avenge my father and steal back the Cooper Family's most prized treasure.

Next scene shows a young Sly sitting on his father's lap as his father began explaining to him about the Cooper Clan's legacy.

It all started when I was a little kid, sitting on my father's lap learning about my family's thieving legends, which they wrote down in a book they have created.

Next scene shows a book with the Cooper Clan's symbol on it and the words:

The Thievius Raccoonus. Every member of the Cooper clan from the ages have written down their secrets on this book. Whoever reads it will learn the skills of the Cooper ancestors. You rip off a master criminal, you know you're a master thief.

Next scene shows Young Sly about to inherit the Thievius Raccoonus, but then, next scene shows five menacing figures breaking into the Cooper Manor.

On the night I was supposed to inherit the book, five criminals broke into our house on that same night.

Next scene shows Sly hiding in a closet with his family's cane, watching in horror as the five evil criminals killed his father in a brutal way in front of Sly's eyes.

My father fought to protect me, but the gang of villains known as the Fiendish Five overpowered him, killed him and ransacked his house until they found… the Thievius Raccoonus. Our family's prized possession has fallen into their dirty hands.

Next scene shows the Fiendish Five tearing out pages from the book into five pieces.

They tear five pages from the book and disappeared, committing crimes around the world.

Next scenes show Young Sly meeting and befriending Young Bentley and Young Murray before they grow up to become the Cooper Gang.

Broken alone, I was dumped into an orphanage. It is where I met my two best friends and partners in crime: Bentley, super genius and escape strategist, and Murray, part time driver and part time burden. Together, we swore to avenge my father and steal back the Thievius Raccoonus. I know, this is the ultimate test of a Cooper Master Thief. I will succeed and become a master thief like my forefathers before me. But first… who are those five girls that appeared out of nowhere?

To be continued…

Next chapter: Introductions and Training: From IS Students to Thieves in Training

A/N: Well, how was that? My first ever crossover that doesn't feature Mew Mew Power. This is probably the first IS Crossover with Sly Cooper. Anyway, next chapter will have introductions and the IS girls will begin their training as thieves in training. So stay tuned.