It's spring break, and 14-year-old Hannah Anderson is glad to be spending it with the "Coast-Is-Clear" program - a group committed to cleaning Pacific Rim National Park's beaches of debris leftover from the tragic Japanese tsunami of 2011. Soon after Hannah arrives on the west coast, Jack, her raven sidekick, finds a small object washed up in the surf: a strange glass ball marked with a glowing Japanese character. Immediately, unusual things start to happen, beginning with the arrival of the mysterious "Kimiko," a Japanese girl with a secret past. Kimiko, it turns out, is a kitsune fox whose magic depends on the glass ball she lost in the tsunami. As Kimiko works alongside Hannah and the other members of her crew, she becomes increasingly unhappy with her life as an immortal kistsune and longs to join a family of humans. Can Hannah and her trickster raven help to make it happen?