Hello all, and welcome to my new Star Vs./Yu-Gi-Oh! crossover! This idea just came to me one day when I thought, "Hey, since SVtFoE is one of my favorite shows and Yu-Gi-Oh! is one of my favorite anime and it's making a huge comeback, why not combine the two?" And that's exactly what I did. In this story, Star is human and instead of the wand, she owns the Millennium Puzzle. Can't wait for you all to see her design.

I'd like to thank Moheart7 for helping to co-write this story, check him out when you all have the chance.

Anyway, I deeply hope you all enjoy the first chapter of this new fic.

It was another normal day at Echo Creek Academy as the the lunch period finally started. Everyone was sitting with their friends and cliques. At one table, a girl with long blonde hair, fair skin, wearing a blue dress with a gold pyramid necklace around her neck was holding five cards in her hand while another girl with tan skin, short black hair, and a green hoodie sat across from her, examining her five cards thoroughly, trying to figure out what to do next.

"Yo, Earth to Janna, it's your move," The blonde girl said with a small smirk at her friend's inactivity.

"Sorry, Star, I'm just trying to figure out what to do next," Janna said with a sheepish grin before looking back at her cards. Just as she was about to select a card, a boy with short brown hair, a red hoodie, and black pants walked up to their table.

"Hey guys, what's up?" He asked politely.

"Oh, hey Marco, I was just teaching Janna how to play Duel Monsters," Star explained to her best friend.

"Ah, so it seems the student has taken on a pupil of her own I see," Marco said with a smile, speaking in a mock sagely tone.

"That's right, I'm the teacher now," Star said with her head held high.

"Now if you'll excuse me, I've got a comeback to make and a duel to win," Janna said, selecting a card from her hand and placing it on the table.

"I summon Nin-Ken Dog in Attack Position," She said, placing a card with a picture of a dog dressed as a ninja. (ATK: 1800, DEF: 1000)

"Ooh, sorry there, Janna. Because I summon Luster Dragon in Attack Position," Star said, placing a card of her own on the field with a picture of a dragon covered with sapphire crystal on it. (ATK:1900, DEF: 1600)

But despite the attack points being higher than her own monster, Janna wasn't going to let her poker face drop such yet.

"So what?" she scoffed. "That's only 100 ATK points higher, I still have at least 600 left, right?"

But both Star AND Marco can easily see the small beads of sweat on Janna's brow, giving Star a knowing smirk, Marco nodded his head in engorgement.

"That may be so Janna, but you forgot my face-down card," Star chuckled, turning over the one other card she had on her side of the field. "I activate Bashing Shield! Meaning that my attack points get an extra boost."

LUSTER DRAGON: (ATK:1900, DEF: 1600 - ATK:2900, DEF: 1600)

"Oh crap," Janna whimpered, knowing what was coming.

"Sorry, girl, but you lose." Star said smugly, ending the game by attacking her monster and wiping out Janna's remaining Life Points.

"I hate you both so much!" Janna exclaimed, dramatically pulling at her hair and earning a laugh from both Star and Marco.

"It's not your fault, Janna, Star just has better cards than you," Marco said, not exactly doing much to make Janna feel better, "Listen, my dad owns a game shop in town. If you want, we can stop by after school and we can pick you up some better cards."

"Your dad owns an entire game shop? Sweet!" Janna said just as the bell rang, signalling the end of the lunch period.

"Trust me, you'll love the place. I even have this ultra rare card I keep there," Marco said as they all began to walk off back to class.

Little did they know, a blonde-haired girl wearing a purple outfit was listening to their conversation.

'An ultra rare card? This I gotta see,' The girl thought.

Later that day, after the last ring of the school bell has finally been heard, Marco, Star and Janna were walking down the street towards Marco's father's game shop, the clear look of excitement plastered across Janna's face.

"Ooh, I can't wait to see what I can dig up in that shop of yours Marco," she said, rubbing her hands together with glee. "Then maybe I can finally beat one of you."

Of course this earned a chuckle from Marco in response.

"Yeah, well you'll be waiting a long time before you're in my league, Janna," he said casually. "Trust me, even Star has had a tricky time besting me."

"Too true," Star replied humbly with a light shrug. "Even if I win, it's always pretty close."

"Yeah, but you pretty much beat everyone else," Janna argued. "I actually lost count on how many wagers people lost betting against you."

Once again Marco chuckled.

"And I'll bet you made quite the bundle on those, huh?" he said playfully.

"How do you think I paid for my own cards?" Janna replied, sharing in the humor.

However while the other two laughed at the joke, Star couldn't help but raise an eyebrow at Janna's last statement.

"Speaking of which," she said, grabbing the other two's attention. "Would you mind letting me see your deck? I just want to check something, maybe see what you may be missing so we can find it at the shop?"

"Sure, no problem," Janna said, taking out her deck from her pocket and handing it to Star, "Here ya go."

"Thanks," Star said as she began to look through her friends deck quickly yet thoroughly before coming to a conclusion.

"Uh huh, just as I suspected when we were dueling earlier; your deck is nothing but Monster cards."

"Yep, it's a pretty powerful deck, am I right?" Janna said proudly.

"Janna, you can't just rely on Monsters to win, you need Trap and Spell cards to help also," Star explained.

"Those cards actually do something? I just thought they were put in there by mistake."

"You have much to learn, young grasshopper," Marco said, using the sage voice again before they all laughed just as they arrived at Marco's dad's shop, Tortuga Game Shop.

"Dad, you here?" Marco called out.

Out from behind the front desk came a large, muscular Hispanic man with brown eyes, brown hair, and a LOT of chest hair.

"Ah, Marco, what can I do for you and your friends?" He asked.

"Well we need to get some Magic and Trap cards for Janna's Duel Monsters deck. But first, can you get my card? I wanna show it to Star and Janna."

"Of course, mijo, give me just a second," He said, going back behind the counter and fetching a small, black metal lock box about a few inches in perimeter.

Mr. Diaz then placed the box on the counter and in turn, Marco proceeded to pull a chain from around his neck, revealing a small key that he kept under his shirt. As Marco slowly opened up the small box, Janna couldn't help but shake with anticipation. Upon finally seeing the wondrous card inside, her jaw dropped in awe.

"Holy..." she uttered, her jaw dropping to the floor so much she couldn't say anything else. "Is that...?"

"Sure is," Marco replied proudly. "Janna, allow me to introduce you to the Blue-Eyes White Dragon."

It was nothing short of astounding to say the least. The high attack points, the sheen of the card's material, even the image upon the cards itself just seemed... powerful. From the dragon's shimmering white scales to it's sapphire blue eyes that looked as though it were staring directly at her, Janna couldn't help but sigh with awe upon seeing such a card.

"Oooooooooohhhh!" Star uttered, her eyes widening at the card's beauty as she shared in Janna's amazement.

"I can't believe you guys actually have such a card," Janna stated, regaining herself for a moment. "I heard they only made, what was it? Five of these in the whole world?"

"Four actually," Marco corrected, surprising the girl further.

"Then how the heck did you get your hands on such a kick-ass card, Diaz?" Janna asked, still staring at the card.

"It was actually a gift from my grandpa. It was one of the last gifts he gave me before he died. It's why I never use it; because of its sentimental value," Marco explained.

"What a heart warming story," Came a voice from behind the group. Turning around, they found a girl with long blonde hair wearing a purple outfit standing in the doorway of the game shop.

"Pacifica?" Star asked.

"Northwest?" Janna asked with a frown.

"What are you doing here?" Marco asked in curiosity.

"Oh, I was just in the neighborhood and thought I'd come and check out what you had in stock," She said casually before eyeing the box and walking over to it, "And what do we have here?" She asked.

"Nothing you would be interested in, I'm sure," Marco said sarcastically, quickly closing the box and shielding his precious card from sight.

Of course this was a pointless effort given the fact that Pacifica had already seen and heard all that she needed to know.

"I beg to differ," she said coldly, snapping her fingers and summoning a man in a black suit from behind her, said man carrying a metal briefcase which he had handed to the young blonde. "You see, me and my family consider ourselves collectors of fine rarities, and as far as Duel Monsters is concerned, I only accept the rarest and most powerful cards in my arsenal. So I am willing to make a very generous offer to you."

Seeing exactly where this was going, Marco placed a protective hand on the box, sending a pleading look towards his father, who easily caught on to what he was implying.

"Oh, well if it is rare cards you are after, then I would be more than happy to show you what we have in our special stock?" He offered, not even catching Pacifica's interest in the slightest.

"I would like to trade you for your Blue-Eyes White Dragon, Diaz. And trust me when a say that I have more than enough cards to equal its value," The young rich girl said, setting her case down on the store counter and opening it, revealing it to be filled with all sorts of rare and powerful Duel Monsters cards.

"So what do you say, Diaz?" Pacifica asked with a smirk on her face.

While the offer was quite tempting to Marco, and especially tempting for Janna, his decision was steadfast, "I'm sorry, but there's no way that I could possibly give up my Blue-Eyes. It means the world to me. My grandpa gave me that card; his heart and soul is in it. If you were a true lover of the game, then you'd put as much love into that case of cards than I would my Blue-Eyes. So I'm sorry, but I refuse."

Pacifica's smirk fell from her face and was then quickly replaced with a scowl. Closing the case, she snapped her fingers again, signalling the man in black to take the case from her.

"If that's how you feel, than fine. But I warn you, Diaz, that Blue-Eyes will be mine," Pacifica said threateningly before turning on her heel and leaving the game store with her servant.

"Jeez, who spat in her coffee this morning?" Star commented sarcastically.

"You don't think she meant what she said, do you?" Janna added nervously. "I mean, she looked pretty angry when you said no."

"Knowing Pacifica Northwest, I wouldn't put it past her," Marco said bluntly, once again locking up the box and hiding the key under his hoodie. "Hey dad, could you hide this please?"

"Of course, Mijo," Mr. Diaz said with a light smile, once again taking the box. "Don't worry, Grandpa's cards is safe here."

And with that, Mr Diaz once again took the box away and proceeded to hide it in the back of the shop, not that Star and Janna blamed Marco for being a little paranoid, given what he had said earlier. With that matter brought to a close for the moment, Marco once again turned back to the girls with his usual smile.

"So, about those spells and traps..."

"Trap hole, Backfire, and Monster Reborn. I have to say these new cards look pretty good," Janna stated with a grin as she and Star walked home from Marco's Dad's shop.

Of course Star's mind was still wrapped around other things, if anything she was simply staring into space, her face showing the clear signs of worry.

"Hey, you okay?" Janna said, finally snapping Star out of her trance.

"Hmm, oh yeah, sorry Jan," she said sheepishly. "Guess I zoned out a little there."

"Stuff on your mind?" Janna asked curiously.

At those words Star couldn't help but sigh.

"It's just the way Marco was acting when Pacifica was eyeing his card," she explained, earning Janna's understanding in an instant. "I'm almost worried that the girl might actually try something to get her grubby hands on it."

Janna couldn't help but scoff at that.

"Pacifica Northwest: heiress to a vast fortune, stuck up as high as the pole up her backside, and a moody little diva if there ever was one," she stated, describing the girl to a tee. "She may be a stubborn cow, but if I know Marco, he's as tough as they come. Trust me, there is nothing Pacifica can do to change Marco's mind about that card.

With that little bit of reassurance lifting her spirits, Star's smile returned, glad for the fact that she had such a good friend.

The next day, when school was over and done with, the two girls were once again heading towards Marco's dad's Game Shop, once again hoping to get more decent cards for Janna's deck.

"You were actually pretty close this time, Janna," Star commented, referring to the duel the two had during lunch period, one which Janna lost of course. "You sure you really want even more new cards, I mean you've only just started using spells."

"Exactly!" Janna exclaimed. "If I wasn't such a novice, I would have been able to tell that those basic ones I had only helped me so much, this time I wanna..."

But then Janna's voice trailed off as she and Star approached the Game Shop, only to find a large, black Limo parked right in front of it, undoubtedly belonging Pacifica Northwest. At first, the two girls were certain that the heiress had just stopped by to see if she could get Marco's card again, but then that's when they saw just who was sitting in the back seat.

"...Marco?" Star uttered, her jaw dropping in shock as she saw the limo pull away.

-Earlier-

Marco had been picked up from school early that day to help out his father around the game shop. After doing the tasks assigned to him, he sat down at the front desk to work on his homework. Just as he was working on some algebra problems, his cellphone rang in his pocket. Taking it out, he answered it.

"Hello?" He asked.

"Hello, Marco," Came an all too familiar voice.

"Pacifica? What do you want?" Marco asked in annoyance and confusion at her calling him.

"Simple, Diaz, I want to give you an offer you can't refuse. All you have to do is take your Blue-Eyes card and get into the limo that's parked in front of your game shop."

Needless to say, Marco was instantly suspicious with Pacifica's words, had he been able to see her face he was sure he was have seen her smirking.

"And if I refuse?" he asked cautiously.

After a brief pause, Marco could clearly here a small chuckle from Pacifica's end of the call.

"I'm afraid I must insist," he heard her say. "My driver can be a little... cranky when a job doesn't go as smoothly as he hoped. I trust that there wouldn't be any problems, would there?"

Not wanting this supposed driver to come in and possibly damage to his father's shop, Marco then sighed in defeat.

"Alright, Northwest," he finally said. "I'm listening..."

-Present-

After doing as instructed and getting into the back of Pacifica's limo, his rare card in his jacket pocket, Marco couldn't help but feel anxious about what he had just been told by Pacifica over the phone. At this point he wished that his friends were there with him to offer some support in the matter, of course little did her realize at the time is that when the car started to pull away, said friends were currently staring at him just a few yards away.

"What the heck is Marco doing in that limo?" Janna asked, voicing both girls' concerns.

"I don't know," Star said, her eyes narrowing as her suspicion grew. "But I'm not going to weight around to find out, come on."

It was then that the two girls quickened their pace, hoping to catch the limo before got too far down the road, unfortunately their legs weren't quick enough and the limo began to pick up speed after turning a corner.

"Now what do we do?" Janna asked, scratching her head with anticipation.

"It must be heading toward Pacifica's house. Follow me, I know a shortcut," Star said, turning a corner into an alleyway.

It took nearly an hour to arrive in front of the Northwest Mansion with Star and Janna at the front gates. Walking over to the intercom next to the steel gates, Star pressed the button.

"Yes, may I help you?" An elderly male voice spoke on the other end.

"We're here to see Pacifica," Star demanded.

"Oh, is that Star?" Pacifica's voice said, "Let them in, Siegfried."

And just like that, the gates opened up and let the two girls inside the mansion's grounds.

"Okay," Janna said nervously. "This is starting to feel a little off, don't you think?"

"Agreed," Star admitted. "I mean, was is just me, or did Pacifica sound a little too... happy to hear that it was us?"

Neither girl wanted to believe so, but what Star said did have some significance, after all Pacifica Northwest was one of the most stuck-up people they knew and would never actually be happy to see them on her doorstep. But now she was willingly letting them stroll through her front garden and towards the front door? Something was definitely up. After ringing the door bell once, they were both greeted by a balding man with a brown mustache, wearing a butler's uniform.

"Uh... we're here to see Pacifica?" Janna said nervously, hoping that repeating Star's demand would get them somewhere now.

Thankfully it did.

"Please follow me," the butler said calmly, ushering the two girls inside.

After following the butler through the Northwest's main foyer, Star and Janna didn't even bother to take a moment to absorb the sheer grandeur of the decor as they both had better things on their minds, like getting Marco out of here. Finally the two were lead towards a small elevator stationed on the right side of the large staircase that lead to the second floor, after which they were both ushered in side by the butler.

"Down please," the butler told the elevator attendant,noth even bothering to step in himself. "Madame Northwest is expecting them."

Nodding his head with understanding, the attendant closed the doors and pulled the lever, making the elevator go down into the lower levels of Pacifica's home. To both girls' surprise, the elevator when further down than expected, so much so that they must have gone down at least ten floors as if they were in a skyscraper. Finally the elevator doors stopped and the doors opened, revealing something to Star and Janna that shocked them to their core.

"MARCO!" Star cried out, instantly rushing towards her friend.

"Is he okay?" Janna asked fearfully.

As Star quickly cradled Marco's unconscious head upon her lap, she could easily tell that he was not okay, aside from being knocked out, the poor boy was also badly beaten and bruised, if anything he looked as though he had been through hell.

"How's the poor fool feeling?" an all too familiar voice chuckled, causing Star to grit her teeth in anger.

Instantly shooting their heads up, Janna and Star saw Pacifica Northwest casually leaning against an open doorway with her arms cross as she stared back at them with a smug grin.

"Pacifica!" Janna snapped. "What have you done to him!?"

"Oh nothing much," Pacifica replied with a shrug, not even bothering to defend her actions. "We simply had a duel and he lost, what's more we were placing our best cards as the prize. But I guess even someone of Marco's talent was no match for my skill."

Star simply couldn't believe what she was hearing. Marco, the boy who taught her everything she knows about Duel Monsters and never beaten by anybody, beaten by someone like Pacifica Northwest.

"S-Star," Marco said weakly.

"Marco!" Star said with small tears running down her cheeks,"I'm here. Don't worry."

"I'm sorry, Star. I wasn't strong enough," He said in a near whisper.

"No, don't say that, Marco. You did your best, I'm sure."

"M-my Blue-Eyes. Where is it?" He asked.

"Oh, you mean this?" Pacifica asked, holding up the legendary card in her hand, "I don't think you'll be needing it anymore."

And with those very words, she took the card in both hands and tore it in two, causing everyone present to gasp in shock and horror. Marco's Blue-Eyes card, one of the last reminders that he had of his beloved grandfather, torn in two right in front of him.

Star couldn't believe that the girl could be so cruel as to do such a thing. Something inside Star began to burn, burn with a fury that she had never felt before in her life. Suddenly, her necklace, The Millennium Puzzle, began to glow a bright gold as her hair and body grew a couple of inches longer, her hair grew to a darker tone of blond, almost gold in appearance, and her eyes took on a pinkish tint to them.

"Pacifica," She spoke, her voice firm and confidant, "It's time to duel."