It's a game about vampires, and you can expect some horror elements here. For gameplay you got some puzzle solving and monster dodging. Some may need a skip option as monster dodging is not too friendly. A fairly complete game is a rare sight nowadays in this site anyway, and it can be worth the time if you like the theme.
This seems to be one of the millions of RPG Maker games wasted on puzzle and horror elements. No actual RPG elements seem to be present, which is not uncommon on this site. The genre choice is not any real detriment, but it is not a game for me so I did not play it for more than 5 minutes. I picked it because it was one of the very few RPG Maker VX Ace games made this year on this site.
It seems like you get the frozen key and can do nothing with it even though a bunch of doors are saying you should use a key. Maybe every house in the village has a key. I thought we were going to a castle but it is a deserted village with locked doors and reminds me of Resident Evil Village a bit. I think there should have been more to introduce the story and maybe have a helpful reaction when you pick up the frozen key.
And to respond to the other review, the menu is in French, but the rest of the text is presented as English here.
The description here says "Language: English", but the title menu was in what looked like French to me.