Osaka City University (OCU) was adopted as one of the universities/public research organizations to receive support for “Tenure-track system diffusion and fixing program” by the Ministry of Education, Culture, Sports, Science & Technology (MEXT), aiming to nurture brilliant young researchers. Providing with independent research environment, start-up funds and mentoring program, we foster Tenure-track appointees, who were employed by open and fair recruitments internationally, in collaboration with related organizations or Graduate Schools.