A chef's life is disrupted by a chime that brings with it an increasing sense of dread.

Kaiji Ito moves to Japan after graduating from high school. Unable to find a job and frustrated with society at large, Kaiji spends his days gambling, vandalizing cars, and drinking booze. Two years later and his life is no better. A debt collector named Endo arrives to collect money owed. The debt collector offers two choices to Kaiji: spend 10 years paying off his loan or board a gambling boat for one night to repay his debt & possibly make a boat load of money. Could the debt collector Endo actually be setting up Kaiji? One way or another, for Kaiji it's going to be the night of his life.

Keizo Kuno, a man who once lived in the yakuza world, has abandoned his past and now lives quietly, working in a corner of Otaru. Every year, he sends a Christmas present—posing as an “uncle”—to Fumika, the daughter of his former sworn brother, Mitsumura. Fumika is a high school student living a peaceful life, but she suffers from memory loss. As she prepares to graduate in the spring, she longs to ask her so-called uncle one question she can’t let go of: the whereabouts of her mother, whom she barely remembers. Guided by the gift she receives, Fumika travels to Otaru and finds her way to Kuno. Though surprised, Kuno can’t hide his joy. For reasons he cannot reveal, he does not tell her the truth—but Fumika is, in fact, his real daughter. Soon, the grudges Kuno carries from his past ignite violent conflicts in the underworld, drawing the two of them in. Though he cannot call himself her father, Kuno stands up to face his fate, determined to protect his daughter’s future.