Welcome back to another geography lesson at Sunday Stitch School. We are still in the Asia region and will focus on Japan with this Japanese Stitch found in Mary Thomas's Dictionary of Embroidery Stitches.
There, it is grouped in the section of Solid Filling Stitches, but I think it would be a good canvas stitch, too. Basically it is a slanted Satin Stitch.

Of course it also features in the Japanese publication, Nihon Shishu wo Tanoshimu, as well as on various Japanese websites, for a bit of light reading, check
this out.
The Japanese name for this stitch is Wari Nui 割繡い.
No Swedish name has been found.
Work it like this:

Here,
and on my Aida sampler
you can see that it is not suitable for Aida cloth which has a wide grid.
It looks much better on Canvas
and on a tightly woven fabric,

here in Japanese embroidery style, but using perle on cotton.
Homework:
1) a challenge of 'real' Japanese embroidery with proper flat silk and kimono silk fabric.
2) Fill a square on this piece of fake canvas.