This book explores the profound impact of Emergency Remote Teaching (ERT) on part-time university English language teachers in Japan during the COVID-19 pandemic. Through a blend of quantitative data and heartfelt personal narratives, the authors reveal the complex challenges faced by these educators—ranging from job insecurity to the rapid adoption of new teaching technologies. The initial chapters delve into the setup of the study, followed by detailed analyses of survey and interview data that underscore the vulnerability and resilience these teachers exhibited. As the pandemic forced a sudden shift to online education, the book examines how these teachers navigated their altered professional landscapes, balancing teaching responsibilities with personal and professional uncertainties. Part three of the book focuses on the voices of the participants, offering rich, first-person insights into their experiences during the first semester of ERT. The narrative deepens with participant interviews and personal reflections that illustrate the profound psychological impacts and the innovative coping strategies developed in response to the crisis. In concluding, the book addresses the future of educational practices, emphasizing the importance of institutional support and professional development in enhancing the resilience and effectiveness of part-time faculty. This comprehensive study not only highlights the immediate effects of the pandemic on educational practices but also serves as a crucial resource for understanding the ongoing needs and contributions of part-time teachers in higher education.