Child psychologist in Tokyo

Has anyone seek help of a child psychologist? We have 9 year old daughter who’s been acting out a lot and things are progressively getting worse. We are completely at loss and we are not sure about the cause of the change of her behavior. A lot of things changed for us in the last year and half: we moved to Japan, kids changed schools and left their old friends behind. My wife went from being a stay at home mom to a full-time employment. I could attribute my daughter’s behavior change to all the above changes but that still leaves us not knowing how to move forward. I’ve heard that the level of mental health awareness is not the highest in Japan but I feel that a help of a third-party arbiter, someone who is not emotionally invested in our relationship, could find answers to some of it and help us. Thanks a lot!