Suzunaan is making a killing from humans and demons alike, and Kosuzu is there as always to watch over the shop and secure some sales. But her insatiable curiosity about the unknown draws her ever closer to the bizarre rumors spreading throughout Gensokyo-and she's not the only one getting involved! Reimu, Marisa, and the other regulars are familiar faces, but where are all these never-before-seen characters coming from?!