"When winter came, you swept away my sadness. When it passed, the memories of you lingered in my mind." A love that transcends time between a winter spirit and a girl broken with sorrow...

"Let me be the only one in your eyes. Don't draw anyone else except me..."

Yusu is a fun-loving girl with a casual sex life but likes to sleep alone at night. When an innocent colleague, Seta, catches her attention, she decides to make an exception.