Marco discovers that nothing is impossible and the unreal is all to real. A magic well and a spunky princess. Marco helps Princess Star to be a better princess. But she's not the only royal seeking Marco's aid. Mewni has a few skeletons in the closet. Star and Marco attempt to right the wrongs of Mewni.

Demon Marco AU. Incubus prince Marco begins his new life at the prodigious Butterfly Academy with his harem, Will he survive the experience? Lets hope so. Requested by kirbymaster800

Humans, Inhumans, Monsters, Mewmens, Saiyans, Gods, and Devils... This Universe has quite the verity of Beings with Powers focused on Magic, Technology, Chi, Genetic Powers, and one's own skills. Where an Academy is trying to train the next generation of Heroes, but something lurks within the shadows of the Realms, Trying to dominate them. Will the Heroes stop the threat in time?

Humans, Inhumans, Monsters, Mewmens, Saiyans, Gods, and Devils... This Universe has quite the verity of Beings with Powers focused on Magic, Technology, Chi, Genetic Powers, and one's own skills. Where an Academy is trying to train the next generation of Heroes, but something lurks within the shadows of the Realms, Trying to dominate them. Will the Heroes stop the threat in time?

Earth is world fill of Mutants and is about to be introduced to a Realm of Magic and Monsters Called Mewni as The Princess is sent to attend a school known as Xavier's School of Gifted Youngster. What is to unfold is yet to be known

Star and Marco have reset their friendship, only to face new evils that threaten their bond and all of Mewni. Will the fight break them apart, or bring them closer? Join them as together they struggle to answer that question and defeat evil.

A story about a 7 year old orphan who loved svtfoe but wasn't able to finish past Toffee's defeat ,why?, because he died in an accident, then he woke up as a character that doesn't exist in the show ,a character that is the twin brother of the queen of darkness herself ,and he'll find that the world is not all cupcakes and rainbows [Si-oc] (Rated T for some themes or references)

Es parte de envejecer, y también de tantos golpes en la cabeza en la juventud, es parte de ser, que somos sino la suma de las historias que contamos, las cosas que vivimos. One Shot Starco.

The collection of Star vs. The Forces of Evil Oneshots. Disclaimer: I DO NOT OWN Star vs. The Forces of Evil. SvTFoE is owned by Disney (and Daron Nefcy).

Marco sera toujours là pour Star, qu'importe les choses qui tentent de les séparait. Ils ne sont pas qu'un garçon et une fille, ils sont surtout amis et Marco fera tout pour que Star se sent bien.

Join Star and Marco as they celebrate their second anniversary of coming together as a couple, as well as bringing together their two worlds. Along with a little help from their friends. In honor of Starco Day.

Hi! This is my first work, so it's probably not too good. I don't own star vs the forces of evil.

A series of One-Shots involving Star and her adventures on earth with her new love Marco! ( MonStar AU: Warning not great at descriptions and also contains Lemons!)

Royal siblings Nia and Astro go to Earth, the former to follow in her mother's footsteps, and the latter to protect his younger sister. The two end up making new friends, enemies, and uncovering secrets and history that will rock mewni to it's very core. Set in Princesscallyie's Callyieverse.

Marco's got a pretty average life, school, crush, and of course a strange but fun best friend he only met a year ago. But all that is about to change when a mysterious house appears across the street, accompanied by a just as strange family, and their emotionally distant son. Though little does marco know, there's more to them then meets the eye. (Tomco, Tom/Marco)

Four years after Weirdmageddon, Dipper and Mabel Pines have come to Echo Creek to investigate and document Princess Star Butterfly and her magical struggles against the Forces of Evil. A comic book shop confrontation, an abandoned mansion, and the tangled strings of fate set the stage for an adventure beyond what even Gravity Falls prepared them for. Multi X-Over

After spending 16 years in another dimension Marco is finding it a little hard to readjust to his life back on Earth. Then a few days later Hekapoo shows up at his doorstep with a daughter, their daughter! Needless to say, he's going to have a lot more stuff to get used to. Cover by hntrgurl13 on tumblr

A simple change at the right time could affect how everything plays out. This is the tale of how a time traveller radically affects not only the future, but her own time as well. Moonco for the lols. Cover artist: holy-wars-and-justice-for-all. (Part of Lunar AUs)

Basically the story of Star’s daughter, I didn’t write it very well.

Long before the story of Star Butterfly, Queen Eclipsa fled her kingdom to elope with Globgor, the king of monsters. But shortly after their daughter's birth, both Eclipsa and her hybrid heir were captured. Once Globgor learns of his family's fate, he seeks vengeance on King Shastacan, unaware he's a pawn in a sinister scheme... (Eclipsa x OC because there's no Globgor tag)

His whole life Marco Diaz has been raised by monsters, living under the cruel rule of their leader, Toffee. But one day Marco escapes into Mewni where he meets a magical princess and Mewman like himself, who begins teaching him all about her world. Together they will learn about life, love, and the lights within each of them, as they change their world forever.

Star and Marco are together, worlds have cleaved, and magic… magic actually survived! But this new world's future is uncertain. With humans hating Monsters, Mina still free, and more, the world stands on the precipice. All the world needs is one person to unite the Forces Of Evil, and Earthni shall be plunged into the fires of ancient cosmic destiny. [Starco] [Jantom]

After a chance encounter that leaves him wanting more out of life, Marco soon gets his wish granted when a certain blonde princess comes to Earth with her entire kingdom in tow. But things are not as they seem, and while the forces of darkness, fear, and evil seek to destroy, Marco and his new best friend look to make things right, between both of their worlds.

Life for Star Butterfly has become a mess after Meteora nearly destroyed Mewni. Tensions between monsters and Mewmans are rising to an all-time high as new forces are poised to tear Mewni apart. On top of that, she must unravel the secrets her family and magic hold while keeping her own...

Dealing with the aftermath of the underworld conquering earth, Marco is determined to put a stop to all the evil. No matter the cost...