Once upon a time, a blacksmith and his daughter lived beside the lone pine tree, Ipponmatsu, at a mountain pass. However, the man was somewhat... irresponsible with his money. His home and business were constantly in financial trouble. Eventually, his daughter is taken as collateral for his debts...
"I will help you repay your debt."

Before the hopeless blacksmith appeared an amicable samurai. Though his motivation was unclear, he offered to help the blacksmith with his money problems.