Shima (Riki Takeuchi), the right-hand man of his yakuza boss and renowned hitman, suffers from kidney disease. Interned in the hospital, he meets Junko, a nurse. When Shima is shot, she goes home and heals him. Gradually a relationship is formed between them and Junko gets pregnant. But Shima cannot escape the obligations of his clan and the disgust of Junko...

In this prequel to "Chaka", Inside a hamburger shop, gunfire suddenly erupts. Shima is ambushed by several men—and kills them all. Wounded and on the run, Shima is hidden by Kishi, a part-time worker at the shop, on the second floor of a lathe factory once owned by Kishi’s late father. There, Kishi’s childhood friend Toko tends to his injuries. What appears to be a chance meeting between two solitary men conceals a deeper, inescapable fate. The “bond” between men centered around an old-style revolver…