Do I think they still have the files they are currently selling digitally? What do you think?
you didn't even try to think about it for 2 seconds. the chapter names aren't shown alongside the chapter numbers on the official sites/apps. they would need to go into every chapter just to find the titles. ai is quicker and would be more realistically what is chosen. besides Japan doesn't have the same hang-ups that westerners have over ai usage and most companies. sheuisha and kodansha included, are already working on replacing localizers with ai for quicker and more accurate translations.