Suzume Katagura, a bored housewife, spends her days doing chores and taking care of her husband's pet turtle. One day, she sees a wanted ad for spies. Hoping for some excitement in her life, she decides to give them a call.

After a three-year prison term in Japan, a yakuza heads for LA to buy two kilos of cocaine. He's going to smuggle it back to Japan, and it's to be his last score: he wants to marry Yoko, his long-suffering girlfriend, and get out of the life. But somebody sets him up, Yoko is shot, and he loses the suitcase of dope. He determines to stay in LA, retrieve the coke, and exact revenge: although he's a drug dealer, he still follows the samurai code of the yakuza. Along the way, he learns that his long-lost younger sister is in Los Angeles, and he teams up with an unlikely partner in his quest for justice: a petty thief who's trying to help a young woman get back to Japan.

Fuki who lives with her grandfather Shoei in Taketomi Island, Okinawa, dreams of becoming a photographer. In her childhood, her mother Masami left Fuki to live in Tokyo. Although Masami has not come back, Fuki receives birthday cards from Masami every year on her birthday. On Fuki's fourteenth birthday, Masami promises to confess everything when Fuki becomes 20 years old. After her graduation from high school, Fuki moves to Tokyo to work as a camera assistant. Fuki starts off her hectic life in Tokyo, and soon, her nineteenth birthday comes. As usual, she receives a birthday card from Masami. A year later...