In 1923, the Korean teenager Kim Shun-Pei moves from Cheju Island, in South Korea, to Osaka, in Japan. Along the years, he becomes a cruel, greedy and violent man and builds a factory of kamaboko, processed seafood products, in his poor Korean-Japanese community exploiting his employees. He makes fortune, abuses and destroys the lives of his wife and family, having many mistresses and children and showing no respect to anybody. Later he closes the factory, lending the money with high interests and becoming a loan shark. His hatred behavior remains until his last breath, alone in North Korea.
Once a powerful ninja, Kamui walks away from his violent and murderous ways. His travels bring him to a seashore village where he meets Hanbei, a fisherman who shares the former ninja’s sense of honor. Though Hanbei’s wife is wary of the stranger, the fisherman and Kamui become good friends. Life at the seaside seems idyllic but Kamui doesn’t get to enjoy the peace for very long when, one day, a band of pirates arrive… It seems that his past life is catching up on him, and everything and everyone is not as it seems. Now he must draw upon his shadowy arts if he hopes to escape with his life.
As a Labrador puppy, Quill is sent to live with a couple, Isamu and Mitsuko Nii, who work as volunteers, training guide dogs (seeing eye dogs). When he grows to an adult dog, he is taken to a guide dog school, by a friendly, yet firm trainer Satoru Tawada. Although Quill is a little slower than the other dogs at the school, he seems to have an unusual ’empathy’ and remarkable patience with his trainers. Tawade decides that Quill would be the ideal guide dog for Mitsuru Watanabe, but Wanatabe, a lonely and ill-tempered middle aged man, isn’t as enthusiastic – he would “would rather sleep than be dragged around by a dog.”. From here, the story is narrated by Wanatabe’s daughter, Mitsuko, and slowly, Wantanbe is rehabilitated, venturing into the outside world, and learning, not only to trust other humans, but the animal at his side who guides him.