Apr. 2007-Mar. 2013: medical student, Faculty of Medicine, The University of Tokyo

Apr. 2013-Mar. 2015: junior resident, The University of Tokyo Hospital

Apr. 2015-Mar. 2016: senior resident, Department of Surgery, Tokyo Metropolitan Police Hospital

Apr. 2016-Mar. 2020: senior resident, Toranomon Hospital

Apr. 2020-Mar. 2021: fellow, Department of Breast and Endocrine Surgery, Toranomon Hospital

Sep. 2020-Mar. 2021:  visitting researcher, Cancer RNA Research Unit, National Cancer Center Research Institute

 Apr. 2021-present: Ph.D. student, Department of biochemistry and molecular biology, Graduate school of Medicine, The University of Tokyo