Japan has increasingly emphasized democracy assistance since the mid-2000s, such that it now constitutes a major part of Japan's foreign policy. This approach is an ostensible departure from the country's traditional foreign policy stance, which tries to avoid bringing values to the forefront of foreign policies. This book intends to answer the questions of why Japan has started emphasizing democracy assistance and why it has relegated itself to a minor role in democracy assistance nevertheless. It argues that Japan's emphasis on democracy assistance reveals its intention to increase its political influence with regards to China based on democratic values, and its usage of the term democracy assistance is a performative speech act to orchestrate a comprehensive approach for international democracy support. Shedding light on the novel aspect of Japanese policy, this book contributes to the understanding of Japanese foreign policy and democracy promotion. Providing the analysis that state's speech act could cause to create foreign policies that counter what is predicted by structural realism, this analysis makes contributions to neoclassical realism which explains states' foreign policy choices within the constraints of international structure.