Englishman Bryan Jenkins was living peacefully with his Japanese wife Itsuki and daughter Alice in London, when his Japanese mother-in-law suddenly passes away, and the family decides to uproot to Tokyo to look after his father-in-law Tsuneo.
With his wife Itsuki on a business trip abroad, Bryan and Tsuneo set about preparing the Matsuyama-Jenkins household for an incoming typhoon. However, nothing could prepare them for the arrival of Tsuneo's great-niece, Setsuko. Having spent time in the US, "Sets" is not the quiet little girl that Tsuneo remembers and Bryan starts to feel jealous of Alice's "new best friend"! To bring the family together, they dust off his box of Japanese games, but this just brings out everyone's competitive spirit!