For the sin of falling in love with a human, Gumiho gives birth to a daughter and enters the world of humans in order to protect her young, tender child. However, Yun Dusu, the man who chose her, is the father of a dying daughter. In order to obtain a liver to save his beloved, illness-stricken daughter, he is forced to do the unthinkable: to kill Yeoni, the daughter of Gumiho. Unaware of this fact, Gumiho opens her heart to Dusu, who protects her as if she is family, and once again falls in love with a human, ultimately suffering for it. And the one man who falls in love with Gumiho, a nonhuman with more humanity than any human, realizes he truly loves her and attempts to make their love work.
"Gumiho has waited 10 years to marry a human and become one. On the night before the 10th year, Gumiho's husband breaks the promise and leaves her. However, Yeoni, the young daughter - half beast and half human - follows her father."
"Yun Dusu wants to have Gumiho as the concubine. Gumiho tries to feed Yeoni the liver of a cow to have her half beast and half human daughter transform back into a human."
"After learning that she ate Yeoni's liver, Cho-ok begins to suffer from bizarre incidents. One day, Cho-ok is drawn to the tomb of Yeoni at the sound of bells beckoning her."
"Lady Yang is terrified by Gumiho who is closing in on to take the life of Cho-ok every moment. Lady Yang decides to visit Governor Jo to protect Cho-ok."
"Yun Dusu finds out who Gumiho is and Gumiho also finds out the truth. She approaches him to kill him but Yun Dusu tries to strike back with Cheonwoo's life. However."
