A transfer system has a storage device including a plurality of shelves, each of the shelves including a placement portion in which an opening region is formed and on which the article is placed and an attaching portion provided according to a position of the placement portion; and a transfer device used for transferring the article, from the one side with respect to the transfer target shelf. The transfer device has a main unit portion attached to the attaching portion of the transfer target shelf from the one side, a moving portion including a grip portion and being capable of supporting the article and configured to move along the one direction, and an elevating portion configured to elevate the moving portion through the opening region of the transfer target shelf.