About "Em, D, C ,B"

[jjfagot]

Swingmix, we have already talked about that progression on another occasion. It is known as Andalusian Cadence.
Simply on that occasion we talked about Am G F E because we started from A minor. Now you’re in E minor, so it’s Em D C B.
The only variation is the last chord, which is major instead of minor. It is borrowed from the major key.
Simply go to the Chords tab and change Bm to B

Which scaler mode does this belong to?

I saw a video explaining common chords. It’s about this. But I don’t know whether it belongs to minor or major, or anything else. He said it belonged to Andalusian cadence, but I couldn’t find it in scaler. [2022-03-27_211831]