In the final years of the Meiji era in the early twentieth century, demand for electricity has skyrocketed following the Russo-Japanese War. Ryouji Saeki, a young engineer, has just returned home from Europe, and as he helps plan for the construction of a hydroelectric power plant, his daily life has taken a feverish pace. By his side is the loyal attendant Edward, who Ryoji took under his wing two years ago. Little by little, how does their relationship as master and servant begin to shift...?