All of the Cold Steel IV but I've looked up things about the series. I read about a lot of theories and the lore and so on.
For instance, the Sky 3rd is in it of itself a mystery. I understand about the cube and Kevin and all that but we really don't know what a Stigma is so for instance the final boss is sort of a mystery in and of itself too. There's been some theories going around about it.
Hopefully they go more into that but somehow I think that game is not going to be mentioned much.
I actually started with Cold Steel 1 through 3. I was a bit lost on the third one due to the Trails In The Sky and Crossbell Cast joining that game.
I than played through the TITS Trilogy on Steam which was fantastic
And when Cold Steel 4 came out I understood more but was confused whenever the Crossbell Cast showed up
I finally went and played the Crossbell games when they came out here. Loved them too
One of these days I'm going to do a massive replay of all the Trails games in order this time
And BTW I played the two newest Trails that haven't been released here yet
I just bought them off Steam and waited till the Machine Translated English Fan Patch was released and than played them
The Calvard Arc is the Best Arc Since the Librel/Crossbell Arc. Not saying the Erebion Arc is bad, it's great too. That Arc is the weakest and has the most faults. But overall all the Arcs in Trails are fantastic
I think Falcom has 1 to 3 more countries to detail. So I'm guessing it's gonna to be at least another 3 to 5 games left when it comes to finishing the story