I somehow got the Knowledge achievement

[Jelli Kat]

Can someone explain to me how I got this achievement, because during my playthrough, I was just trying to kill the entire village. Knowing this will help me unlock the other 4 achievements :)

I remember that I was in the third year. From the discussions that I've read, I assume that this is my first trial. I killed 10/12 major sinners and I don't know who the last two sinners are.

Another thing I remember was that all my virtues were above the line, except my ignorance was at zero. I thought that my ignorance being 0 would be a factor, but a lot of the discussions (in 2017/2018) I read said that the virtues had almost no affect.

[Brother Alpha]

I'm replying here, because I also want to know how to get these achievements. I'm quite confused. Do I need to have low stats or do I need to keep certain major sinners alive?

[virior]

If you have Ignorance under the line two times in a row you get this ending.