Hai-Feng Wang is now a Postdoctoral researcher at Enrico Fermi Research Center of Rome in Italy. He got his Ph.D. in 2018 from the National Astronomical Observatories of the Chinese Academy of Sciences. He became a Postdoctoral researcher at Yunnan University as LAMOST Fellow in China from 2018-2021 and a Postdoctoral researcher at Paris Observatory in France from 2021-2022. His interests focus on the Milky Way and Local Universe Seismology, Archaeology, Disk complex systems & Dark matter nature with the data, modeling, and simulations.