I LOVE IT!
A nihilist and depressed hero and a Demon king who will try to help her feel better ???
@FrostyCactus
Hey, don't say sorry because you've worked to provide us a translation to read, and you find that someone already did it!
If you find something cool, and want to share it, you can do what you and, at most, someone who know were to find the other translation will ask the translator/group to post it here, and it won't lower the good work you've done.
Like
@Reversinator said, "It's hardly a duplicate when you translated everything yourself." No-one will say you are a thief, or doing duplicate just because you've done your own work (It's only when you steal it and publish it with your name, and that's bad).