I examined the mutual relationship of the Hyeokgeose Myth(赫居世神話), the Alyeong Myth(閼英神話) and the Alji Myth(閼智神話) with Alji Myth as the central figure, because the Alji Myth is connected the others at the situation from various Mythmes. I seized that After Former-coming tribal groups from Gojoseon(古朝鮮), six-tribals’ groups(六村集團), Alyeong tribal group, Hyeokgeose tribal group and Alji tribal group came in Serabeol(徐羅伐) one by one. I examined that Alji tribal group is not the same as Alyeong tribal group and is a late-coming tribal group, because of the political relationship of the others, Alji tribal group took with a lttle mythmes from the Hyeokgeose Myth and the Alyeong Myth. And this paper demonstrates that an aspect that the heokgeose and Alji Myths were formated as ｢A Birth-A Marriage｣ type is the result of the relationship of power among the native tribal group, a former-coming tribal group and a late-coming tribal group, because as a late-coming tribal group is proud of their individual and unique ‘paternal-maternal pedigree’, a conflict is surmised. Thus, I assumed that rather than do that, they took a method that a leader of a their tribal group brought his pedigree into relief and a process of his marriage and carrying out his task.