Hiya!
Since FEITS hasn't been updated in quite a while, and the creator wasn't interested in adding localized names, I did it myself. It's called FEFTS (Fire Emblem Fates Text Simulator) and is a fork of FEITS.
Download link: https://github.com/robotortoise/FEFTS/releases
Here's the changelog from FEITS:
Optimized PNGs to save a bit of memory and hopefully boot a bit faster.
Changed default conversation to something absurd (Selkie/Chrom) to better show the benefits of the program.
Changed name to "Fire Emblem Fates Text Simulator".
Localized Reference Guide, and stored locally.
Created a changelog.
Further improvements to overall system stability, system security, and other minor adjustments have been made to enhance the user experience