Ryota is an advertising man with a happy family life, but his wife, a famous food stylist, his wayward daughter and colleagues make life difficult for him. When his father ends up in the hospital, Ryota travels to his father’s village, where stories about the mythical Kuna awaken his interest.

Ryota does not dare tell his wife, Sae, that a contract has passed under his nose at work. He decides to see his father in Nagano and take his daughter Moe along with him. At the invitation of his father’s mysterious young friend, Naho, Ryota enters the forest for the first time.

Ryota finds an old notebook belonging to his father and discovers with surprise that the red bonnet he found in the forest looks like two drops of water similar to those worn by the Kuna fairies. He also finds out that his father and Osamu have both been linked to a woman named Kumi.

Eisuke regains consciousness, much to the relief of Ryota and those close to him. But the young woman suspected of being Eisuke’s mistress shows up at the hospital and ends up meeting the family. Meanwhile, while Osamu is in the forest, a shadow advances behind him…

Ryota returns to work, but even during the long-awaited filming of the commercial with Junji Takada, he cannot find his feet. He urges his subordinate, Sanada, “to find a sponsor for his father who would subsidize the hunt for the Kuna”.