The life of an American woman living in Kyoto, Japan, is upended when her husband and son disappear in a mysterious plane crash. As consolation, she's given Sunny, one of a new class of domestic robots made by her husband's electronics company.
Upon receiving her son's first published book, Kiko tells her best friend Midori about a shameful secret from their childhood, how she "made a deal with the devil" for her son's future.
