Erika is the city's strongest Magical Girl and leader of the dazzling Star Chroma group! But when she sacrifices herself to defeat the terrifying Spore Queen Miasma, it's up to her best friend Winnie to pick up the pieces. Or in this case, fall to pieces. 8 years later and Star Chroma is no more and Winnie is stuck in a dead end office job. But when the Spore Queen unexpectedly returns, Winnie will have to find a way to manage on her own. At least until an old friend reappears as well...