We are aware of the translation issue and started a proofreading plan right after the initial release. The Revised version (with minor bug fix) will be published in one week.
Many thanks to Matt! It’s really great to have a native speaker helping us!
Since we’ll publish lots of changes in the English subtitle, part of the save data could become invalid after the new update. (English Language Only)
It will only affect the data saved during events. The data saved at “Night Class Mode” and “Weekend Free Mode” will remain the same. The CGs/Endings/Achievements/Items will also work as usual.
It’s highly recommended to save your latest progress at ‘Night Class Mode’ before the game closed.
But don’t worry too much. We will also release an optional patch with the update. You could still use your old save data by applying the patch manually.