有難や節　あゝ有難や有難や

Koichi Haruyama, who works at the Morita Automobile Factory, was driving a convertible through Ginza in search of accident sites. He buys cars that have been damaged in accidents at a low price and scraps them for his own company. He uses the money he earns in this way to pay back Kanda Trading. Morita, the president of the company, is suspicious about the identity of Kanda Trading, from whom he borrowed money. However, what is borrowed must be repaid, and Koichi drives to Toyokawa to beg his grandfather for money as his scrap business is not going well. In addition to begging for money, Koichi has another secret purpose...