Miyashita Saori is chosen to be the yearly Saio-dai, "Queen" of the local Aoi Festival, a high honor. Kura's Owner brings Mrs. Miyashita and her daughters Saori and Kaori, who is a schoolmate of Aoi's, to the shop. Saori has found threatening letters in her bag telling her to quit and Owner thinks Kiyotaka can help. It's assumed a pair of girls, former friends of hers, are behind it...