The purpose of this study is to examine all the aspects of the variation in the storytelling of Lee Gangseok and Lee Byeonglyeol, the two storytellers from Iksan area who were subject to a number of on-the-spot interviews conducted by the researchers. The analysis of the aspects is based on: 1) temporal differences caused by the time when the stories are told; and 2) comparison with the cases where general types of narratives are transformed into specific versions that are likely to reveal the individual features of the storytellers. The variation factors which have resulted from this approach can be summarized as follows. First, correlation between the personal tendencies of the storytellers and the stories told should be noted. In the case of a story that the teller would rather avoid telling, a structural variation could result due to abridgement or confusion. Second, the variation does not merely take the negative forms of abridgement or reduction. But it also takes the form of creative change with the stories made content-rich and endowed with vividness by a glib storyteller. Thus the stories may well be reinterpreted and re-created by means of the storytellers\' view of life, oral ability, characteristic expressions and so on. Third, the place of storytelling is one of mutual interaction between the speaker and the hearers, so that there always exists the possibility of arbitrary interruption. In relation to the situations of storytelling, meta-narration should be taken into consideration. In accordance with the relationship of speakers to hearers, the typological features of meta-narration could vary; for example, in the storytelling for children and adolescents the stories are prone to be told to help the hearers understand some folk custom or concepts in order to transmit the morals successfully. On the part of the speaker, the commentary at the end of the story functions as self-reflection via storytelling and as the speaker gets old the tendency is found far more often. Last, the researchers have come up with the following findings as a result of analyzing the variation in sequential storytelling: 1) with the storytelling repeated, there appeared more detailed contents; 2) with the storytelling repeated, the tellers tend to seek for a certain logical structure to fit into the natural flow of the story; 3) aspects of variation reveal the gradual change of the speaker\'s view of value and the changing worldview and there lie a strong correlation between variation and change of views. By and large, the change of worldview is headed toward the conservative standpoints of the elderly class. There is also a form of variation made by a changed view of value such as conversion or a newly obtained religious faith.