This is a story that I wanted to write for a long time, but I couldn't get ideas to do it, and I thought that the acceptance for this story wouldn't be good, but I received many comments saying the opposite, thank you my readers for motivating me to write more and more.

I think I got just a little bit emotional, but enough of this, let's go to the chapter

~Morningstar_Childe

Naruto and Star vs the Forces of Evil are not owned by me they are owned by Masashi Kishimoto and Disney respectively.

"Normal Speech"

'Thought'

*spells and techniques*

"Narrator and creatures"

"Far, far away, in a magical land called Mewni, there lived a princess: Star Butterfly"

The camera focuses on a family painting, to the right a short, fair-skinned man with light blue eyes. The crown on his head is gold with a large pink jewel on top, and he has blond eyebrows. He also has a large thick moustache and a two way split beard. he sports gold shoulder pads with periwinkle tufts, periwinkle cuffs at the end of the arms of his blue coat and a blue fur cape. He wears large grey trousers and black boots and carries a blue-grey sceptre with him, periwinkle and white with a crystal in the shape of a blue crescent moon and a star on top.

On her side a woman with long light blue hair, light blue eyes and magenta coloured diamonds on her cheeks. wearing magenta pink lipstick, she wears her hair in a large heart-shaped updo, and she has a gold crown with a purple diamond in the centre. She wears a light blue, periwinkle and white dress, the skirt somewhat resembling the shape of a heart, with long blue gloves.

And in the middle of the two a girl of average height, between 14 and 15, with long blonde hair down to her knees, pink hearts on her cheeks and blue eyes. She wears a blue dress with hearts and a crown.

"I'm fine!" shouted the young princess as she slid down the banister of an elegant staircase breaking in the process a crystal decoration on the staircase, falling face first onto the floor and knocking over the painting on top of her, which tore as she stepped out through the middle of the painting and part of it came off almost knocking over the chandelier above her

"A lot of people call me reckless and irresponsible, just because... I FIGHT MONSTERS"

The scene shows Star surrounded by monsters, only to then hit one in the face, another in the jaw causing him to lose some of his teeth and then jump up and hit a third monster in the face with a spinning kick

"AND TAME WILD UNICORNS"

A unicorn with bluish-green fur, mane and black tails was drinking water in a river in the middle of a forest until Star jumped on his back causing him to lose control and start running as Star guided him.

"...I like to have fun, and I'm going to have a lot more because today is my fourteen birthday and according to tradition, my mother, the queen has to bestow for me the greatest family heirloom...The Royal Magic Wand"

Star said with excitement as she crossed the city on her way to the castle while riding the unicorn out of control causing people to run away so as not to be caught in the path of the rampaging beast, inside the castle the king and queen waited in the throne room, and around them the royal entourage all waiting for the appearance of the princess, who appeared shortly afterwards destroying the gates of the room with the unicorn who continued her onslaught jumping up the throne steps before crossing the wall with her leap.

Star suppressed several excited squeals as her parents just stared at her wide-eyed from the incident with the Unicorn.

Star jumps a few times trying to get the wand out of her mother's hand, but can't.

"Now, Star, that wand is a great responsibility, if it falls into the hands of the evil forces the universe could be destroyed!" The queen declared before having the wand snatched from her hands by her daughter.

Noticing the change of bearer the wand transformed, from a blue and gold scepter with a heart shaped crystal crest to a light purple wand with white wings attached to the handle wrapping around the base of the wand bell which has a blue circle with a gold star and pink hearts surrounding the crystal star inside, there is a yellow crown on the tip of the wand, a blue butterfly between the bell and handle, and a yellow tip with a blue heart on the end of the handle in a burst of pink light.

Seeing the new version of the wand, Star choked with excitement and her eyes began to glisten as she looked at the wand.

"Don't worry mom, I can handle it" Star said confidently

~Some time later on the outskirts of Castle Butterfly

Star had been excited about her new wand, her mind was racing thinking of ways to use her wand. She wanted to help everyone with her magic, but to her misfortune she couldn't find anyone.

"Hmm, what can I do... I KNOW, I'm going to brighten everyone's day with a big rainbow, what can go wrong?" Star said to herself with her eyes shining with excitement

Star then prepared herself and cast the spell:

*Giant Glitter Rainbow*

And then a rainbow appeared and enveloped the city

"I told you I can handle it" Star said proudly, until the rainbow started to catch fire making everyone run in fear

~In Butterfly Castle

The king, queen, and a little blue man watched as an embarrassed Star quietly left the place

"She can't handle it" The kings spoke at the same time

"What can we do now? Star is clearly not ready" King River declared

"We can always send her to St. Olga's" Queen Moon commented

"I think I have a better idea" The little blue man spoke up

"What idea Glossaryck ?" The queen asked

"I think it's best to take her to a safer dimension so she can train, I can see one with Heckapoo, and we will send her later today" Glossaryck said

"That's a good idea, what do you think dear?" River asked

"I think it's a good idea" The queen agreed

"Good, I will go talk to Heckapoo" Glossaryck said before disappearing

"Now what will we do until Glossaryck returns?" The king asked his wife, not realising she was no longer there

~Crystal Dimension

"I don't understand why you want to release him after so many years, being that even after Toffee's defeat you didn't think of it?" Questioned a tall, muscular humanoid creature with green skin. He has a large crystal like head, two small blue crystals on his chest, green snakes on his arms and legs and one eye. He wears a long purple cape with a hood and purple pants.

"He's been there long enough, he has to get back to work" Moon said would be

"But my queen, what if he tries to rebel against the kingdom? You know how he is" The creature spoke

"I know very well he is not like that, he was not to blame for my mother's death, and you know that Rhombulus" The queen replied

"I know my queen, but you have good reason to suspect him, considering his power it is impossible he would not want revenge because we imprisoned him for so many years" Rhombulus replied

"Yes, it was a mistake to leave him there, but I don't believe he will do anything against the kingdom" Moon said confidently

"Right, you've convinced me" Rhombulus sighed defeated

Then Rhombulus channelled lightning into a crystal melting it showing a young blond boy, about Star's age, The boy had wild blond hair, marks on his cheeks, sky blue right eye and red left eye with a torn pupil, he wears an orange shirt under a white jacket with a golden hourglass over a red swirl embroidered on the back, black trousers and a necklace with a green stone.

"How long have I slept, is it Stump Day already?" the young man asked

"Naruto Uzumaki... Your services are needed at Butterfly Castle" Rhombulus stated

"Have them plant corn, why would I help them after they imprisoned me here?" Naruto declared

"Because I really need your help" Moon said

"Wait... Moon, how long, what have you come here for, you haven't spoken to me since..." The young man fell silent at the reminder

"Yes, but I really need your help, my daughter Star..." Moon was interrupted

"I know Star... what happened to her?" Naruto asked casually causing confusion in the queen

"How do you know Star?" Moon asked

"Simple, I sent my consciousness out of that cursed crystal and created a form I found out what had occurred since I was imprisoned here and as soon as I found out about the birth of yet another Butterfly princess I followed Star until about her tenth birthday, putting my consciousness with a child form, funny they always said I had the mind of a child I just never thought it was literally" Naruto stated

"You said this is simple?" Moon asked before realising "Wait... you know about everything that happened after you were sealed?"

"Yes, but don't worry, I wasn't upset that you forgot me here, trapped, in a crystal, having to put up with Rhombulus for all these years" Naruto said with fake sadness, but then made a mocking smile "But really? River Johansen? You didn't have anyone better no?"

Moon didn't say anything just stared at him

"I stopped, I stopped, what did you want with me?" Naruto asked

"I need you to be Star's guardian while she trains in another dimension" the queen stated

"That's it? I started before so I don't see a problem, it will be an honour to officially serve the Butterfly family again" Naruto spoke

"Good, I will talk to you later about which dimension we send Star to so you can accompany her" Moon spoke calmly

"I will be waiting... But if possible could I wait somewhere else? I'm tired of looking at those diamonds" Naruto asked

"I will arrange a place for you in the castle" Moon said calmly

"Thank you very much Moonie" Naruto replied

~In Butterfly Castle

After a Heckapoo meeting it was decided that the dimension Star would be sent to is a small dimension called Earth which was chosen for the lack of magic. With that done the queen left towards the guardian's quarters.

Entering there, she found him sitting on the bed reading a book. Moon knocks on the door to get the blonde's attention who takes his eyes off the book

"We have already decided, she will go to Earth, a small dimension with no magic, we will take her right now" Moon spoke hurriedly

"Right, I don't have many things to pack anyway, so let's go!" Naruto said already getting up

"You will go after we leave" The queen spoke "We will make sure everything is ready for your arrival"

"Right, I'll wait" Naruto said with a certain irritation, he was tired of waiting, besides he already knew the end of the book he was reading

~Timeskip 5 hours, Dimension: Earth

"DAMN IT! I'm walking for five hours straight, damn green haired freak, i'll never ask for direction again for someone who's carrying 3 swords,one-eyed miserable..." The lost blonde continued grumbling until he heard a fight

A group of the weirdest monsters anyone could find that included: a giant chicken, a unicorn horned bear carrying a large axe, a humanoid frog, a bipedal giraffe and more, were facing two people, a Latin American teenager with tan skin, dark brown hair, brown eyes wearing a red sweatshirt and a light skinned girl with long blonde hair and blue eyes wearing a sea green short sleeve dress with a white collar, white lace on the sleeves and skirt and a beautiful pink octopus on the front. She also wears pink and orange socks, dark magenta boots with a rhino design and a small yellow star shaped side bag with a face on it. Which Uzumaki recognised as being Star.

"I'm just in time, or too late...whatever, damn marimo!" Naruto shouted jumping up and kicking one of the monsters that flew backwards.

Star and the other teen hadn't recognised who it was but they thanked him for his help so the three of them attacked the group of monsters, Naruto tricked a green man with horns into attacking himself with his own hammer, the teen in the red sweatshirt attacked a red two headed monster and Star threw the giraffe monster into a car with a spell

"You said she was unguarded" Shouted a small green feathered bird-like monster at the frog

" I don't know" The toad replied embarrassed.

Meanwhile the three continued to attack, with Naruto throwing some sort of humanoid potato-like monster with three eyes flying before hitting the ground, Star then throws the monster frog into a pole almost hitting his boss.

"You're embarrassing me! Get up!" The monster bird shouted causing the monster frog to get up and rip off the pole it hit to attack Star

*Jelly Bean Hallucination Mist*

Star hit the spell on the frog putting him in a state of hallucination making his face appear in his hands

"What's happening?" The toad's hands spoke along with him

Naruto was fighting the Horned Bear when Star and the teenager in the sweatshirt were kicked by the potato monster and the chicken, they then got up kicking the monsters back, after that Star moved his wand which gained a pink glow and shouted:

*Mega Narwhal Blast*

Making dozens of giant narwhals come out of the wand attacking the monsters, knocking them to the ground making them groan in pain.

"You want some of this, Ludo?" Star asked mockingly to the bird monster

"No... You see, you morons! This is what happens when you don't work out! Your muscles are like pudding!" Ludo said as he jumped with his dimensional scissors opening a portal

"Come on, back to the portal, back to the portal, you even retreat like losers" Ludo spoke to his subordinates with a mixture of anger and disappointment

"I'm freaking out" Muscular Toad said entering the portal, still under the effect of the spell

"I'll get you, Star Butterfl..." Ludo's threat was interrupted by the portal closing in on his neck, which caused him to lose his skull hat in his attempt to enter the portal

"That was amazing, I was amazing, you were amazing and that guy was amazing too" The teenager in the red sweatshirt said excitedly until he noticed " Wait... who is that guy?"

"Me? I'm... the night, I'm revenge, I'm Batman" Naruto said as he put his hood over his head and jumped up onto a pole

"What?" The other teenager spoke as Star wondered what a Batman was

"Just kidding, I'm currently just Naruto Uzumaki, but who knows the author doesn't turn me into Batman next week, he loves to throw me into a new universe" Naruto replied as he rambled

"Wait... Naruto?" Star recognized his former friend's name as the other teenager tried to understand the blonde's madness

"Star? because I'm asking of course you're the one with the most hearts in your face?" Naruto replied before receiving a wand blow to the head then a hug

"I missed you" Star spoke still hugging the other blonde

"Me too Star, me too" Naruto said tenderly

Deep inside Marco started to feel a bit embarrassed by the honeyed moment, which was noticed by Naruto

"Hey Star, Aren't you going to introduce me to your friend?" Naruto asked letting go of Star

"A, sorry, I forgot about that, his name is Marco" Star replied

"Nice to meet you Marco, could you help me with something?" Naruto asked, receiving a confirmation from the other " Do you know where this place is?"

"A I know, wait... THAT'S MY ADDRESS" Marco replied confused and slightly shaken by having another person living in his house

"So the three of us are moving in together? THIS IS GOING TO BE AWESOME!" Star shouted excitedly

"A, lucky me, looks like we're moving in together, it'll be fun" Naruto said excitedly

"Then let's go Naruto, I'll show you the way, let's go Marco" Star said as she walked out with Naruto leaving a stupefied Marco behind

"Hey wait for me" Marco shouted as he regained consciousness "AND BEWARE OF THE TRAFFIC LIGHTS"

"Sure Safe Boy" Star replied laughing with Naruto as Marco ran to catch up with them.

~End

"That was the chapter, hope you enjoyed it, sorry for the delay but I was starting another story while I was writing this one, plus I usually draw all the covers of the stories and the appearances of the characters which are more originals of mine so I get a bit busy with that but I did it with a lot of care so I really hope you enjoyed it, there aren't many of this format out there for the various platforms so as a fan of both series and appreciative of all the crossovers they've already done of it I decided to pay homage with a story I've always wanted to do but never imagined there would be so many people who wanted it too so thank you all very much, and see you next time. "

~Morningstar_Childe