I have exactly same problem with this post here... https://www.reddit.com/r/SMAPI/comments/lwro94/dialogue_font_modding_help/ I want to use custom NPC mod that include only Japanese language but Japanese characters don't show up on the dialog box when I talk to the custom NPC... I want the majority of the game to be in English!! So is there any way that I can display Japanese characters in the game without switching the language setting to Japanese? I was able to get the smallFont and spriteFont1 xnb files to work by replacing them by their Japanese counterparts. I have no idea how to load other Japanese xnb file... I guess I have to use some kind of command to load Japanese xnb or something...? Can somebody help with this? (´・ω・`)