first game

idk how different between these two

this is the sequel to that game.
but it seems like the same engine as the first game or so I thought.

on how I still got the game files?
well, I never deleted the files of this game so it's still on my pc even after the game is closed

here's the "parts.kar"

https://drive.google.com/file/d/1ZA_vps ... sp=sharing

Hello.
I was wondering is there a way to extract .kar file extension for this Japanese MMO action online game.
I'm still very new to this type of thing so please pardon me.