He got a degree of M.D. from the University of Tokyo. Following two years of clinical training, he started Ph.D. training under Dr. Yukinori Okada at Osaka University, focusing on bioinformatics research related to the gut microbiome and human genetics (Tomofuji Y et al. Ann. Rheum. Dis. 2021/2022, Tomofuji Y et al. Cell Genom. 2022,