Akane, a woman in her late twenties, has poured her passion into supporting an idol group. Her world crumbles when she witnesses her favorite idol kissing his girlfriend, leaving her feeling empty and adrift after she decides to drop him as her oshi, her object of devoted fandom. While drowning her sorrows alone, she encounters a young man named Narita, who is also drinking alone after being dumped by his girlfriend. A conversation sparked by their shared misery reveals that they both work at the same company. Inspired by a sudden idea, Akane declares that she will make Narita her new oshi and dedicate her considerable fan energy to him, promising to make him shine because he deserves to be happy again. The story follows their evolving workplace relationship as Akane applies her skills as a seasoned fan to boost Narita's confidence and help him move on from his heartbreak, gradually blurring the line between her fan project and genuine romantic feelings, while Narita finds himself drawn to her enthusiasm and care.