Wasao, an Akita dog in Aomori Prefecture that became famous as an ugly-yet-cute dog from a traveller's blog. Heartwarming drama starring Wasao himself turns part of the life of this former stray into an original story. Setsuko, who runs a grilled-squid shop in a fishing village at the foot of the Shirakami mountains, decides to take in a large dog with a long, unruly fur that has shown up in town. She names the dog Wasao and showers it with affection, but Wasao at that time doesn't take to Setsuko.

Home-design sales representative Tomohiro lives with his wife and their son. As his job involves houses, it is his motto to take great care of the family who live in the house. However, he has been working so hard that he has forgotten to cherish his own family. When he looks after a client who wants to leave her father-in-law in a nursing home, it reminds him of his grandmother whom he loved so much. Father's death, grandmother's struggle with disease, and home care - those were grueling times, but the memories have become invaluable for Tomohiro. He realizes his family is the most precious thing of all. On a day off, he and his family decide to visit his mother who lives alone in their old hometown.

Long ago, Japan was home to several navies. The Murakami Navy, said to be the strongest of them all, once defeated even Nobunaga, and refused to join Hideyoshi, choosing to pursue their love of freedom and the sea. The man who led these samurai of the sea was the great pirate lord Takeyoshi Murakami. And now Kaede Murakami, a descendant of Takeyoshi, is an elementary schooler living on an island. On her 12th birthday, Kaede discovers a flute in her family's storehouse that has been passed down through the Murakami family for generations. The flute holds the key to finding the Murakami Navy's buried treasure. This adventure story tells the tale of an ancient pirate and his descendant forming a connection that transcends time, uniting the island.