Ralph Lauren ★ Y2K Heisei Gal Fitted Polo Button-Down Shirt
This is a boys' size, but it can be used as a tight-fitting shirt for a 156cm slender woman♪It has a polo shirt-like feel and is very comfortable (=^x^=)It hasn't been used much, so it's generally very clean, but there's a slight stain on the button (see photo 3).