In 2008, Amano Haruko (42 yo) is a housewife in Tokyo. In 1984, she ran away from Kitasanriku, her hometown in Iwate Prefecture, had lived in Tokyo ever since, and never went back. But she has been receiving emails by a former schoolmate, Daikichi (Train Station Master, 44 yo), telling her that her mother back home had collapsed and insists that she returns home. So that summer, for the first time in 24 years, she comes back to Sodegahama, a fishing village by the sea, bringing along her shy daughter Aki (high school student, 16 yo). However, Haruko, as she had suspected all along, finds out that it was a ruse to bring her back, and that her mother is actually fit as a fiddle. As Aki is taken through a tour around her mother's hometown, she learns about the depopulation problem of the city. She is introduced to the people of the city's Tourism Office and the Sodegahama Fishing Cooperative, particularly the middle-aged members of Ama Club, a group of women divers who fish for clams and sea urchins for tourists. Later, they arrive at Haruko's parents' home. Aki goes to the beach and, for the first time sees her grandmother, Natsu (Ama and the Leader of the club, 64 yo), swimming for seaweed and sea urchins. "So cool~!" Aki is instantly in awe of her. (Source: tvdb)