On July 4th, 2020, the southern prefectures of Japan experienced record-breaking heavy rain, which caused devastating floods and landslides. This report focuses on the areas of Kumamoto prefecture, which was most severely damaged by this disaster. The flood of July 2020 happened at a time when the whole country, as well as most other countries of the world, was fighting the COVID-19 pandemic. The authors hope that the findings of this research, supported by CWS Japan, will bring to light the complex impacts and management implications of cascading disasters, and thus project the importance of a multi-hazard approach.