National Institute for Agro-Environmental Sciences (NIAES), Japan, NIAES is a research institute focusing on environmental issues related to agriculture including nitrogen challenges such as cropland emissions of nitrous oxide, nitrate leaching to groundwater, and local-to-regional evaluations of nitrogen cycle. NIAES will thereby facilitate the involvement of Japanese scientists into the East Asian Regional Demonstration in close collaboration with the International Nitrogen Initiative–East Asia. Furthermore, NIAES is pursuing the Monsoon Asia Agro-Environmental Research Consortium (MARCO), which aims to provide international symposia and help to train the people who will carry on activities under the consortium. It is expected that MARCO also contributes to the case study.