Mental health and psychiatry have made significant strides in recent years, particularly in advancing the understanding and treatment of psychological disorders and developmental processes. It is with immense enthusiasm that we welcome you to the 2nd International Conference on Mental Health and Psychiatry, set to take place in the vibrant city of Tokyo, Japan, on October 09-10, 2025. This highly anticipated gathering brings together leading experts, researchers, clinicians, policymakers, and advocates from across the globe, united by a shared commitment to advancing the field of mental health and psychiatry.