If My Favorite Pop Idol Made It to the Budokan I Would Die

After seeing a concert by the minor idol group ChamJam, which causes her to become fixated with one of its members, Maina Ichii, Eripiyo's initially routine existence is flipped upside down. Maina is consistently the least popular member of the group despite Eripiyo's passion for her, therefore Eripiyo takes it upon herself to buy a lot of Maina's stuff, which primarily consists of singles. Eripiyo has just one tracksuit she always wears because she spent practically all of her money on this stuff. She regularly attends ChamJam performances with her friends and other ChamJam devotees, including Kumasa, whose favorite is Reo Igarashi, and Motoi, whose favorite is Sorane Matsuyama. Maina worries more and more that Eripiyo is pushing herself too hard for her as she continues to support Maina by working multiple part-time jobs.