Following his breakup with Jackie, Marco moves to Mewni full time. Given a second chance to be with Star, will he finally find the courage to recognize and act on his feelings? Meanwhile, a sinister plot to upend the Butterfly Dynasty is brewing as new enemies rise. Can Star discover the threat in time to save her family?

A series of Alternate Universes (AU with a few in the canon universe) mostly one shots with a few multi-parters all about that Starco.

(AU) Marco is a prince who cannot rule and the owner of a wand he cannot use. Growing up sheltered and alone, everything in his life seems to go wrong until he meets a very special peasant girl outside the castle walls.

One night during vacation, Lincoln, his sisters, Clyde and Ronnie Anne are attacked by strange creatures from the darkness. That same night Lincoln and one of his sisters are chosen by the keyblade. Now they must find everyone that was spread across the different worlds and defeat the Heartless. Can a magical princess, her friend, and a boy that's half gem help? T for violence.

Nova Butterfly is the daughter of Marco and Star. As a young magical princess now in charge of the wand, Nova strives to deal with life, living up to her awesome parents legacy and her crushes. But is there a dark, mysterious, dangerous force behind the scenes, ready steal the wand away from the unsuspecting princess? Maybe? cover by marionette-j2x. former cover by weather-art.

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