This article sought to find a new way to study the characters in the field of folktale research, focussing on the female protagonist of the “Shin Lip of Tanguemdae”. This tale is a legend formed around historical events, but fictional character plays a key role in forming the narrative and forms the central meaning in a symmetrical relationship with the real historical hero, Shin Lip. Based on the relationship between the subject and the object, this tale being exchanged between the male protagonist and female protagonist in that relationship, is connected successively to the failure or success of their quest. In the end, the female character dies and becames the vengeful ghost, and then she killes and takes him over. To understand this problematic character, it is necessary to explore an approach that considers the nature of posthuman or posthumanism. In terms of ‘death’, ‘body’, ‘ego’, ‘relationship’, and ‘reality’, the female character is transformed into new beings beyond the prevailing order and rules of the day. Her death has leaving her former body and giving her a new ego or identity. She subverts relationships that have formed in the existing world, as revealed through the relationship with the historic hero, Shin Lip. Her desires and acts not only deviate from the world order of reality but also expand it anew. Furthermore, through her narrative, we can discover legends’ the possibility of a new narrative, that is a new faction that embraces fantasy.