For beginners, we highly recommend getting lessons at the start of your vacation. Even a few pointed from a professional instructor will make you learn faster, and the right technique will mean you are able to enjoy the sport to it’s fullest.
One of the worse things you can do when learning is get an unqualified friend or partner to try and teach you how to ski. I generally winds up with a lot of frustration on both sides (and marriages have even ended because of it).
A professional instructor hold qualifications and has experience. There is a right way and a wrong way to ski / board, and a professional will be able to get you heading in the right direction.
There are several reputable ski school in Hakuba offering high level professional services. We support locally owned operations.