Ban Dae Gil, the chairman of the leather company, wants his son Ban Seok to take over the company, but when Ban Seok continued to refuse to take over by setting up a company called "Bantube," Ban Dae Gil tries to ruin Ban Seok's company with all kinds of tricks. In response, Ban Seok and its employees, along with Ban Seok's mascot dogs and cats, Laotteu and Choon Ja, begin to fight together.