Forthright and impetuous Eripiyo is the number one stan for Maina, a sidelined member of the underground idol group Cham Jam, spending a fortune on CDs, merch, and fan meetings to support her fave. As fan events come and go, Eripiyo remains steadfast in catching a glimpse of Maina at every opportunity — and despite her shy personality, Maina's adoration and gratitude for Eripiyo's support is beginning to bridge the awkward gap between them as idol and fan.

When a lucky break brings an influx of new fans to Cham Jam, the lines begin to blur between Cham Jam's indie status and what it takes for them to break into the national spotlight as the group travels to Tokyo! But newfound popularity brings with it its own set of insecurities and complications. To support an idol group from the very start and see them flourish should be every fan's dream, right? And yet, there's a bittersweet feeling that comes with becoming just one among a multitude of fans...