Does anyone know the name of the knife this ice cream seller is using?

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.