Here is an example of the knife being used.
ASMR – Energy Ice Cream Rolls Oreo | How To Make An Energy Drink Out Of Ice Cream || Chinese Food
Notice it is similar but like a cleaver. I have also been trying to find the name of this, but the closest I found was a Japanese menkiri.
Hope someone can answer this.
PS: it is similar to the knife that was used by BanBan from one piece anime, which was asked by another user.
What kind of cooking knife is this?
Updates:
I just found a clearer view of the knife at 3:58 in the video in the youtube link. Basically, it is like a cleaver, without the handle jutting out, but part of the blade it self.
It should look something like this:
I tried to use google image search, using this image, to find but no luck.
PS: The photo above is photoshop of what I think the cleaver looks like.
Best Answer
I also believe the style of knife you're looking for is called an "ulu" though the OP pix look to be a ulu cleaver.
Here is an ulu more similar to the OP pix: https://www.kitchenknivesonline.com/products/12-ulu-chef-knife-walnut