Sunset Hyperdrive

My own little hypothetical JJBA story cause I can't just insert my OCs into canon like a normal person. Set in a separate splinter universe from parts 1-6 and 7-8.

Joaquina Joestar, a mechanic living in a teeny roadside town in the Mojave, has an imaginary friend. Sure, it seems weirdly tangible at times and it punches people for her every once in a while, but stranger things happen out in the desert, right?

She quickly learns she is both right and wrong about that assumption when the tour bus for synthpop group SUGAR⭐CANE pulls up to her shop with a flat tire. They all have imaginary friends too, but they call them Stands, give them kooky names, and get superpowers from them. Sensing her only opportunity to learn about the true nature of her power, Joaquina joins the band on their cross-country tour, learns about friendship and teamwork, and gets roped into a world domination plot, as you do.