Kirari Tsukishima is a 14-year-old girl who loves eating above all else. She has no interest in idols or the entertainment industry, and her constant focus on food leaves her completely clueless about romance.
One day, Kirari rescues a turtle stuck in a tree and meets a kind, handsome boy named Seiji. To thank her for saving his pet, he gives her a ticket to a concert by SHIPS, a popular idol group. Kirari heads off to the concert but runs into another boy who tears up her ticket and warns her to stay away from Seiji, claiming they live in different worlds. Furious, Kirari sneaks into the concert anyway—only to discover that Seiji and the boy who tore her ticket, Hiroto, are both members of SHIPS.
Now she understands what "different worlds" meant: Seiji is a famous idol, while she is just an ordinary middle school student. But Kirari refuses to give up. Determined to be with Seiji, she declares that she will become an idol herself.