This story combines and contrasts the subdueness and mutedness of winter with the heat of human life and interaction.
It feels realistic in its portrayal of the progression of the main romance. Both actors (especially Seo Kang Joon) and the characterisation of their roles really make you believe that they are living their life and view it through the lense of their own experiences.
But the seemingly passive way this story is told is also it's greatest weakness because it makes an unnamed police officer only appearing in one sequence the only one addressing the domestic abuse storyline from a different perspective.