Language Barrier: Can't Communicate in a Seoul Full of Zombies

I haven't set any particular ending, so please feel free to play as you like.
NPC dialogue is set to be displayed in the character's own language regardless of the user's language settings, but there may be occasional bugs where a Chinese character's dialogue appears in Korean, or a Japanese character's dialogue appears in Roman letters. It may also appear with translations in parentheses. Trying to delete and re-enter might fix it.