This book is a selection of the most crucial papers of a Chinese expert on Japanese studies. The papers cover many topics involving politics, economy, culture, diplomacy and other aspects. It has a high academic value. Researcher Wu Yin, the author, has been devoted to the study of Japanese issues for a long time, from the early study of the history of China-Japan relations to the later study of contemporary Japanese international relations. Her study covers the China-Japan relations in various historical periods and involves various fields of contemporary Japanese political culture. Her discussion from the perspectives of "Emperor politics" (Tenn¿) and "concept of family-country" (kazoku kokka) can be regarded as the key to Japan's political culture. However, the proposition of the view of "equal imbalance" in today's China-Japan relations is of great enlightening significance to people's deep understanding of the essence of China-Japan relations under the cover of various complicated appearances. There are many similar highlights in the manuscript, so I will not list them. I believe that with one volume in hand, readers will be able to understand the context of China-Japan relations. It is worth noting that the manuscript is not only academic but also highly readable due to the author's fluent writing. It is not only of reference value to professional Japanese researchers, but also suitable for general readers to read. In addition, in the interview record of a Japanese researcher's path, the author deeply reviewed the footprints of his own academic path, in which the spirit of academic research revealed can also give the later generations of scholars extraordinary incentives.