It does better with Sejong despite the same unique ability.

does this make it so ley lines add an adjacency to the Seowon?

This feels like Anshan's bonus but it alternates between faith and science. Maybe decrease the faith and science to +1 science in a golden age and +1 faith in a dark age, and give the Seowon Great writer points equal to the number of great scientist points.

I have a little idea for the Seowon iand the book bonuses. I was thinking first for the book bonuses it would be 1 science and 1 faith for a regular era.. For a golden/heroic age it would be 2 science/1 faith, for a dark age it would be 2 faith/1 science.
And I was thinking for the Seowon it would be a flat 2+ bonus and get small 1 bonuses from both hills and mountains around it and apply half faith for its adjacency bonus not including the flat bonus
It was just a little throwaway idea I wanted to give out before I forgot about it

historically more accurate. great mod.

Unfortunately, Korea's +2 mountain adjacency bonus from this mod doesn't stack with the +2 mountain adjacency bonus from the _Mountains Suck Less_ mod, which more or less does this already for Korea (and other civs). Maybe I'll edit the file to bump up the hill adjacency bonus.

I agree Korea needs buffs. (Australia's +3 adjacency which doesn't reduce with nearby districts, and can be built on non-hills, results in a higher net science bonus. And Australia also buffs other districts.)

Korea probably doesn't need the buffs to great works of writing, but it doesn't hurt to have it.

Now there needs to be a mod that increases the number of great works of writing somehow. (I couldn't find one.)

korea is the best science civ for people that don't actually know how to win fast science games Don't really see the point of adding great writing slots without giving any bonus towards getting great writers. A lot of these bonuses just seem disconnected from one another.

Well good on you, but they are pretty much the best Science civ period as is. That counts for something.