This book, through empirical case studies, reconstructs the principles of legal regulation in the intermediate field, thereby facilitating the understanding of the functional distinction between contract law and tort law. The intermediate field with fuzzy borderlines between contract law and tort law emerges as their regulatory functions have expanded. It takes two forms, namely the fuzzy and overlapping field. The institutional reason for the emergence lies in their overlapping functions. From a comparative perspective, this book contends that civil liability, as a normative remedy for rights and interests, should be separated from general law of obligations to construct a uniform norm of liability. In the case of diversified liability forms, a uniform system of civil liability should be constructed with the consequence model based on liability integration. As such, it contributes to restoring the functional foundations of liability that have been alienated, avoiding the intermediate field, and achieving integrated effects and uniform liability. Unlike the traditional research which focuses on the concurrent liabilities of contract and tort law, this book is the first to examine and propose the systemization of regulation in the intermediate field between contract law and tort law and hence a theoretical contribution to Chinese civil law and comparative law scholarship. While the Chinese Civil Code is coming into force, the book is conducive to the understanding of the cutting-edge research of Chinese civil law for the international community and provide fruitful materials for exploring both the advantages and drawbacks of the code.