Changing language to japanese

[Poet Olette]

Does anyone know how to change the language to japanese? Unfortunately I cant just do it in steam because the japanese version isnt fully updated, so skse doesnt seem to work. I tried changing it in skyrim.ini at the very top to japanese. But it crashes my game. I do have japanese voice acting though, but I would very much like the font too. Bit confused on how to do this. I did try and copy over the interface.bsa from the japanese version to see if that would do it, but its all in english still.