1. Graduate School of Humanities and Sciences, Ochanomizu University, Bunkyo-ku, Tokyo, Japan.
2. Natural Science Division, Faculty of Core Research, Ochanomizu University, Bunkyo-ku, Tokyo, Japan.
3. Graduate Program in Sustainability Science-Global Leadership Initiative (GPSS-GLI), Graduate School of Frontier Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.
4. World Vision Rwanda, Kacyiru South, Kigali, Rwanda.
5. World Vision Japan, Nakano-ku, Tokyo, Japan.