Aki Sasaki and her husband run a metalworking factory. They had taken out a loan for a new condominium and were struggling under the financial strain, doing their best to get by. Then, their parent company went bankrupt, their bank halted financing, and to make matters worse, her husband died in an accident—a tragic chain of events. Burdened with debt but determined to preserve the factory her husband left behind, Aki is approached by Yoshino, a man working for an investment firm. Yoshino offers to buy off her debts, but only under the condition of a certain transaction...