A/N: Greek-Alpha thanks for the review, Korra-naga-mako lover 2112 thanks for the help.

Reminder: this is an AU story so Jackie and Marco are not dating, Glossaryck and the book are still with Star, and she hasn't confessed her crush to Marco (yet). But, this chapter will take place right after the party. Also did anyone see the opening for season 3?

Well? Let's dive in shall we?

Disclaimer: go to the Prologue for that.

Chapter 1 A Shooting Star's Summer Begins

(Earth Dimension Diaz Residence)

It was a bright and sunny morning after the exciting night of the Diaz's end of school party. Mr. Diaz is cleaning up some of the aftermath of said party and Ms. Diaz is in the kitchen making breakfast for everyone. While, upstairs their son Marco Diaz was still sleeping due to all the craziness that happened at the party. So his parents let him sleep in since today is the beginning of his summer vacation. However, it's also the first summer for another person living with them, and they can only guess that Marco won't be sleeping for much longer.

Upstairs in his room, Marco is still asleep unaware that someone is sneaking into his room and tip-toeing to his bedside with a giant smile on their face. This person was the ever-adventurous and ever-energetic Star Butterfly also, nicknamed the 'Rebel Princess' she is princess of the kingdom of Mewni, her parents the Queen Moon and King River sent her to earth to train how to use the royal magic wand. Once Star was close enough to Marco, she reared her head back and yelled "RISE AND SHINE MARCO, IT'S TIME TO GET UP AND GRAB THE DAY BY THE UNICORN'S HORN!" Marco shot up from his bed almost hitting the ceiling, eyes wide open, looking around his surroundings like crazy until his eyes finally land on the young blonde trying and failing to stop laughing.

"GEEZ STAR, WHAT IN THE WORLD KIND OF WAKE UP CALL IS THAT? YOU NEARLY GAVE ME A HEART ATTACK FOR CRYING OUT LOUD!" Marco shouted trying to slow is ever racing heart from Star's yelling. "I'm sorry, I'm sorry I just didn't want you missing out on this amazing day." she said pointing out the window. Looking to where she was pointing, Marco had to agree that it did look like a nice day. "Hold on Star? What time is it anyway?" he asks. "Let's see… oh it's about 9:38." Star says looking at Marco's digital clock. Looking at the clock himself he feels his panic from before come back ten-fold. "WAIT, WHAAATTT?! WHY DIDN'T MY PARENTS COME WAKE ME UP?" he asks while frantically finding something to wear. Star looks on confused at why Marco is freaking out so much about waking up late, then she remembered that Marco may have forgotten what today is. Before he ran out the door past her Star grabs him by the hoodie causing him to fall flat on his back looking up at his best friend in confusion.

"Star, what are you doing? We don't have time to fool around, we're already late for class as it is." Marco says in a panicked voice. "Okay first, Marco I need you to chill out for a second and tell me what date you have marked on your calendar?" she asks while helping Marco up. "I have it marked for June 1st why did you have me-"Marco stops mid-sentence then looks back at the calendar. Turning to look at Star, rubbing the back of his head in embarrassment "I'm rushing to get to school on the first day of our summer vacation" he says with a nervous smile on his face.

"Come on Marco, you don't have to worry about forgetting, I mean you did have a wild time at the party last night, it's only natural you'd forget something." Star says while patting him on the back to make him feel better. "Guess you're right. By the way, what did happen last night?" Marco asked trying to remember last night's events. "Oh well, let's just say you got tired all of a sudden and kind of passed out in front of a certain someone." Star said with a worried look on her face. "Okay me passing out for no reason is pretty weird, wait you said it was in front of someone right? Who was it?" he asked.

"Well, I'm not sure if I should tell you that." she says deciding to look at the floor with a sad expression. Marco was confused with Star's answer. "Huh? Why don't you want to tell me Star?" He asks seeing the way she was acting. "(sigh) because if I told you, you'd think you were lame and un-cool and that's not true. You know how to kick butt with karate, you make the best nachos, you like puppies, your bravest person I've ever met and-, whoa, whoa, whoa, okay Star I get it you can calm down now." Marco says putting his hands up tell Star to slow down.

"It's okay if you don't want to tell me. it's not the end of the world besides your right, I don't want to make your first summer here on earth about me thinking I'm lame or something." Marco says putting a comforting hand on Star's shoulder.

Star threw her arms around Marco bringing him in for one of their usual hugs. "See Marco? This is why you are my bestie, you pick yourself right back up like a brave knight of Mewni." She says with confidence. "Alright then, how about before we get started with the first day of our summer vacation, we get some breakfast to start?" Marco says. "YEAH! Summer breakfast here we come!" Star shouts bolting out the door dragging Macro along the way.

(Outside Diaz Residence)

Unbeknownst to Star and Marco a lone figure wearing a black hooded cloak was watching the duo from a far off roof top. From the look of the body shape the person is obviously female. "Those two are indeed part of the Chosen from the legend" the figure mumbles to herself. "Are you sure Rosa?" a voice said from within the mind of the now named Rosa. "Yes I am, I can sense the light's presence from them both. But, I'm also picking up the faint presence of darkness from the boy, do you believe he may succumb to it like the one before him?" she asks the voice. "We'll deal with that when and if it becomes an issue, although to be honest, I'd prefer if it didn't come to that. I don't want this young boy to go through what Eraqus's pupil had to endure." the voice said in a concerned tone. "Especially, since he's someone precious to my family's current successor. For now, continue to watch over them and if anything or anyone appears as a threat, be sure to protect them and yourself okay?" the voice says before dismissing itself from Rosa's mind. "(sigh), your always so concerned for your loved ones and those who are connected with them. it's only one of the many reasons why I'm proud to be your apprentice." Rosa says with a light smile while stepping through a dark corridor which then vanishes.

A/N: there you have it. Star and Marco's Summer Begins along with what's to come. Now, a few things to go over.

Rosa is an OC I just thought of and is going to play a pivotal role in the story. The mysterious voice's identity will be show later on down the road, if someone can guess before then I'll give a shout out in the next chapter and if you have a character for the thirteen seekers, the seven guardians, or a keyblade design I promise to use it.

I'm wait till chapter 6 for anyone else who has an idea to share. You have until then to submit.

That's all for now see you all in the next chapter. ;)