Do you want to watch anime with japanese subtitles? Try this method!
If you want to add japanese subtitles for your animes, use this and download the subtitles for the anime that you're currently watching.
Here's a tutorial if you don't know how to add it (step 5~) or just press alt+o and select the .ass archive that you downloaded!
It's important to download the episodes with softsubs instead of hardsubs (so you can remove the english subs with alt+x and add your subs)
if you have any question please let me know :-)