@hecatia Just because you want a specific feature doesn't mean it's what we need to work on at the moment. All of the current dev work is going towards preparing the site for major future updates, which means rehauling all of the code using frameworks instead of spaghetti. You're absolutely free to go use the other aggregate sites who don't have the feature you're asking for and will NEVER get an update because they're ran by people who's only interest is maximizing ad profits
MangaDex is a hobby to all of its staff members. No one's getting paid, no one has a responsibility to update the site, no one has any obligation to do anything. We paid for the first four months of MangaDex ourselves and we only began to take donations because the site was slowing down from the ridiculous traffic and people wanted the site to succeed. We have no interest in making any amount of money off the site, our users, or from scanlation groups. Otherwise we would've gladly accepted any of the 50k monthly ad deals being sent to us in emails, which would easily cover our $1k per month server costs
or hell, just use advanced search and limit it to original language: japanese if you really just wanna see only japanese stuff. It's not like it's impossible to find the specific content you want right now