After the lunch time, the main session started.Students were divided into 16 discussion groups based on their interests.Each group talked about one of the following topics:To create innovation, to preserve beautiful nature, to reduce inequality, to accept different values, no poverty, and sustainable social development.Three students participated online from overseas, Taiwan and Mongolia.We had great supports by international students of Nagaoka University of Technology and Niigata prefectural CIRs.