After World War II, discussion about memory and responsibility of the war are main stream in both Japan and China. Argument about the responsibility and history of Second Sino-Japanese War has not cooled down since International Military Tribunal for the Far East. This research is mainly about Travelling in China (written by Honda katsuichi, editor of Asahi Shimbun) and the argument about “Killing one hundred people using one sword” caused by this book. I intend to figure out clues about the history of Second Sino-Japanese War by the discussion about “Killing one hundred people using a sword” and Travelling in China, and to discuss the relationship of the reality of history, written of people’s history, and the ethnic issue about responsibility and judgment.