Amami Hibiki is a girl who can see ghosts and other supernatural phenomena in her surroundings. The stories follow her daily life with both her friends and the otherworldly.

Inoue's bratty little cousin Yuuki is visiting. She's trying to cater to him by cooking his favorite breakfast (fried eggs) every morning, but he complains about the awful taste every time! Amami vows to help Inoue cook the best eggs ever, but after consulting with a nearby ghost, she learns that maybe Yuuki wants something more than just better flavor?

Amami's classmates are dumbfounded when she suddenly starts acting like a total brat, until Uehara Kana snaps a picture that reveals the truth: she's been possessed by "gal ghost!"