Sachiko Nakamura is Assistant Professor at the Center for English as a Lingua Franca at Tamagawa University, Tokyo, Japan. She received her Doctoral degree in Applied Linguistics from King Mongkut’s University in Thailand in 2021. Her research primarily focuses on language learner emotions and engagement, which has been published in journals such as Studies in Second Language Learning and Teaching and Studies in Second Language Acquisition. She has been invited to co-edit a book, Innovation in language teaching: The case of Japan, published by Palgrave Macmillan, and to contribute chapters for edited books, including the Routledge handbook of the psychology of language learning and teaching and Student engagement in the language classroom by Multilingual Matters. Apart from her own work, she volunteers as a proofreader, reviewer, and content editor for international refereed journals.