Mutsuko has been living on an island to which her grandmother and mother have restricted her from leaving. To Mutsuko, the symbol of her freedom was Dreamland, an amusement park on the mainland, but she learns it will be closing permanently this year. Meanwhile, Wataru returns to the island after nine years due to a job transfer. A pupil of his deceased father pays him a visit and tells him about a side of his father he did not know about.
Yuichi is a freeter who has lazy days. He receives an allowance from a woman that he lives with. Tomoko is a housewife. Yuichi and Tomoko meet through an online dating website. They become involved in an intimate relationship, but their lives are about to be shaken by an incident.
