After seeing the most extreme despair, I realized how naive and ridiculous my previous selfishness, tyranny, and collapse were.
It's a sweet story with a clear conscience, and it has a clear emotional line. It doesn't abuse anyone but the protagonist. (It has nothing to do with sci-fi mecha, but the author will not label it, so be careful!)
Concept: Love is loving the part of the other person that you don't want. The only human nature that can be controlled is selfishness.