it is totally possible to do some animations like in your link, but I dont think that there is a manga tutorial for Natron out there, - yet.
But first you should learn the principles of Natron. It is not a layer based system like in After Effects, but a node based system.
Mantissa made a great beginner tutorial:
In your video they show that the first part is in Photoshop where all parts of the person that should later move get seperated on different layers. Then in After effects each layer get animated on a timeline and rendered out.
So here it is same but a little different. And there is more than one golden way.
The first part is the same. You can use Photoshop, Gimp or Krita for that. Whatever you have and know how to use. Save it as .psd file
So the layering is done.
Simply said, in the Natron part you want to stack your layers on top of each other (merge node) and use the transform node to animate/rotate each layer with keyframes and loops.
I hope I dont write to confusing for you.
Ill try to work it out first before I say something wrong.
By the way, if this is the only animation you will do. Maybe Krita works just fine for you.
It is an easier workflow, because you can do all in one application.