Read the excerpt from "My Lord Bag of Rice." He had only gone a few steps when he heard some one calling him from behind. On turning back he was much surprised to see that the monster dragon had entirely disappeared and in its place was a strange-looking man, who was bowing most ceremoniously to the ground. His red hair streamed over his shoulders and was surmounted by a crown in the shape of a dragon's head, and his sea-green dress was patterned with shells. Hidesato knew at once that this was no ordinary mortal and he wondered much at the strange occurrence. What element of a folktale does this excerpt contain?