Maybe not for the full japanese characters set, but for an existing game, they could do it for the subset of characters they are using.
I don't think that's practical, because the subset would still be quite large. I did a quick analysis of the Factorio localiization files and found more than 1200 unique characters
I don't think that's practical, because the subset would still be quite large. I did a quick analysis of the Factorio localiization files and found more than 1200 unique characters