Abstract
This study investigates the factors involved in creating the personal networks of performers who participated in the “City A” and “K University” theater play joint project in 2016 and 2017. For this examination interviews were conducted with one director, one staff member in charge of the project, and 14 performers. Analyses of these interviews using threestage coding reveals eight factors influencing the construction of their social networks: rules sharing, places sharing, time sharing, feelings before performing, relationship adjustments by director, life sharing, relationship adjustments by members, and post-performance relationships. Among them, “relationship adjustments by director” and “life sharing” are the most important factors for their personal networks. Also found was the inefficiency of the theater play in promoting the creation of personal networks.