Three standalone fantasy stories explore bargains, mysteries, and acts of kindness across very different worlds. In the title story, a royal family’s deal with a forest fairy shapes Princess Ruri’s life and right to the throne; another follows a fearless young detective investigating spooky incidents with her dog and brother; the third centers on a living cloud that repeatedly helps people in need. The collection brings together fairy-tale drama, child mystery, and whimsical fantasy in one volume.