In an era without wars, battlefields only exist between reality and dreams. During a sweltering summer day on an offshore island, soldier A-chi discovers the dead body of his commander with a sketchbook containing grotesque drawings. The death of the commander is closely related to soldier Yi-san, who disappeared from the military. And the commander’s girlfriend, Kang-hua, soon falls into the new commander’s hands. A-chi has admired Kang-hua for a long time, but he suppresses his feeling due to her relationship with the new commander. By reading the former commander’s sketchbook, A-chi pries into the lustful relationship between him and Kang-hua…