This document discusses regional amateur theatre in Japan and what theatre researchers can learn from it. It provides examples of different types of amateur theatre groups in various Japanese towns and cities that produce original musicals, revues, plays drawing on local history and culture. The document suggests that regional amateur theatre can serve as a "self-reflective mirror" on culture and reveal an "unheimlich" mimetic desire that could reshape reality. It argues that while professional theatre may not reflect political and social realities, amateur theatre has subversive potential through challenging conventions and establishing alternative realities.