The ancient Sumerian belief coincides with the scientific research, about the hidden DNA sequence in chromosome two. Kai gets visited in his dreams by the ancient Sumerian Serpent God - Enki, who comes down to earth and shows Kai how to unleash the secret DNA and join the alien Gods.
Su-Hyun, who was a cold-hearted and prickly girl, and Hyun-Su, who was a gentle and upright model student, coincidentally meet at their hometown station, Pohang 15 years later. They both feel a strange attraction to the matureness of each other. So the two stay up all night drinking and spending...
