I made a UI translation for myself so I could understand what was happening and decided to share it here in case anybody else wants it. It has all the skills translation, the upper right of the UI translated, the "mental state" of the target, and the initial gameplay instructions translated. I translated it by hand using a dictionary.
Despite having this information, I found the best strategy was just to block off the target and then spam any skills that move the train into "Yawing" and decrease the mental state of the target while constantly acting with the main character.
So, this is a gameplay-oriented functional translation and neither looks particularly pretty nor translates any of the story text. There shouldn't be any errors, but if you find one I could probably correct it.
Link (WIN):
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To install, go to the game's Data folder, rename "resources.assets" to something else (e.g. "resources-backup.assets") and put in the modified "resources.assets" file.