This is the research booth of Kansai University. Currently we have a project of synthetic population of whole Japan using a super computer called Octopus in Osaka University, and distribute the synthesized population data using a cloud system of Hokkaido University. We have a backup of synthesized populations using a shared storage of the University of Tokyo that is duplicated using the system of RIKEN. We show the system of synthetic population and several ways of using synthetic populations in social simulations that include a COVID-19 simulation that balances economical activities and preventing schemes of the virus spreading.