A citizen of Robot Kingdom, Dengo had a son named Jokum. One day, Jokum got diarrhea from drinking the water from his village's stream. The doctors said they could do little for commoners without insurance. Jokum died.
Years later, Dengo was working as a janitor at the royal palace. This way, he could get close to Princess Robot and her newborn son. He told her the story about his son, before he killed the Princess. He took the newborn baby.