Black Butler which season should I watch on Netflix?

Many say yes that is the 2-tier villa but on Netflix there's now the 4-tier I should watch the 4 or 3

If you don't know Black Butler yet, watch from episode 1

The second season (with Claude and Alios) does not appear in the manga, that's right. Still, it was invented by Yana Toboso. But she only produced them for the anime and not for the manga. I would definitely look at her. Season 2 is one of the best for me.

I can only say yes