The scene is in a place where ballet is practiced. Girls just dance ballet a few times, then sit on the floor, with their legs bent behind them and their heads down and touching their legs. There is also a scene of wearing stockings, which is the kind of long tube with flesh color.
I remember there are: Japanese imported raw materials, wear-resistant and high-elastic nursing silk, Langsha velvet socks, which are really affectionate and elegant.
It seems that this advertisement is long gone!