Moe (22), the older sister, visits her younger brother while he's home for winter break, currently attending university in the city. As she poses for photos, her defenseless, voluptuous, soft body becomes too much for him to resist, driving him into an incestuous relationship with his sister. Their bond continues to deepen uncontrollably even after crossing the line. Here lies the recorded tale of a forbidden romance between siblings, hidden within the quiet of winter.