Exporting mmd models into unity for a game

My friends and I want to make a game that's something like zelda twilight princess (basically one character that you can see and control, and the perspective swivels around so you can see the entire character and surroundings) but I'm not sure exactly how to get my 3D models into unity. I'm not exactly sure how unity works with 3D models since I'm not working on the programming end of things, but I'd like to know if I can export mmd models and accessories (just the objects, not any of the movements) into unity, and then move the models in unity. Sorry for the super long description!