When the princess of Mewni runs away from home, she meets the quiet boy Marco Diaz. Little does she know that this boy is the greatest warrior the world has ever seen. StarxMarco

Star and Marco have known each other for years. But what happened? Why have the two gone their different ways? Whose fault was it? And how does writing in a journal suppose to help? Find out in this AU of Star vs. Straight up Starco

Marco Diaz is an outlaw and thief making his way up the criminal ladder. When he is accidentally given the Starco, a mysterious powerful object, he will become the target of countless people wanting the orb for themselves but on his side is Star Butterfly, a girl trying to escape her former life. Can these two work together to protect the Starco? Based on Guardians of the Galaxy

AU Star was sent to Saint Olga's instead of Earth. At Saint Olga's she slowly loses her individuality as she is forced to become a perfect princess. Marco Diaz is just a average teenage boy living on earth. Eventually fate leads to a destined meeting and Marco is forced to protect a Broken Princess and lead the fight against the forces of evil. Marcoxharem primarily Starco.