HJMO-188 - クリスマス直前！寂しそうな素人娘達にセンズリ鑑賞してもらいました！！

If you mean the 'actress who appears at the very beginning,' that's likely Mio Kanata. I've only seen her in samples and photos, but her visuals are clearly on another level compared to everyone else. If you search for 'Mayuki' or 'Mio Kanata,' you'll find a few works. There are a few obscure ones as well, but since she doesn't have a massive amount of releases, it shouldn't be too hard to catch them all.

I'd like to know the name of the woman who appears at the beginning! Could you please tell me?