In January 1946 a British military transport plane departs from Shanghai on its to Tokyo, Japan. During the flight the airplane makes an emergency landing on Sado Island. The residents on the island have heard stereotypes of the British soldiers and have mixed feelings about the their new "guest." Nevertheless, for the next 40 days the islanders take care of the crew members until the plane can take off once again. This includes Chiyoko Morimoto who is the daughter of the inn owner where some of the British crew members stay.

Miki (Kaoru Mitsumune), Aya (Mika Kumagai), Megumi (Miyako Takayama) and Haruka (Yukiyo Sono) are friends in the same photography club at their university. They often spend their time together at "Tide-Pool" tea shop, run by Miki's parents. One month before they graduate, they girls plan a graduation trip, but Miki is unable to join due to her studies. Also, Haruka lost the girls' trip money. They all make up, but next month they'll go their separate ways. Miki feels empty ...