Highschooler Akino loves her schoolmate Okada, but Okada has a girlfriend called Nacchan. While Akino is busy being jealous of Nacchan to the point of becoming obsessed with her, she realizes that she is more fascinated by Nacchan than Okada.

Having failed to get into graduate school, with no girlfriend, no money, and no prospects of success with his band, Tsurugi's life has reached rock bottom. One day, after watching the video of Aya Matsuura's song “Momoiro Kataomoi”, he becomes obsessed with the idol singers of “Hello! Project”, and plunges into the idol geek lifestyle. However, as time passes, he and his buddies all find other things just as important as the idols and begin to move on.