Under the Tohoku University DEI Promotion Declaration, the School of Engineering launched its DEI Promotion Project to foster gender equity and inclusion. A crucial step was collecting and analyzing data to understand the current status. Results indicated a positive correlation between the ratios of female faculty and undergraduate students, intensifying at higher positions. Efforts to increase female professor numbers and integrate diversity into departmental faculty meetings included both top-down initiatives by the Dean and bottom-up approaches by faculty members. Additionally, we raised organizational awareness through Unconscious Bias training and discussions about Equity-conscious evaluation methods.