Ko left the military and picked up a camera at the age of 27. The richest of his early work shows the members of a theatrical troupe both on and off the stage experiencing life's joys and tragedies, and garnered the attention of Japan's photographic community.
當他 27 歲離開軍隊，拿起相機開始創作的初始，最豐富的作品，就是呈現戲班台前幕後的悲喜眾生相，並獲得日本攝影界的青睞。