@Jayswing103 If you think about it... the cursed sword is just karma.
He forced Magary to go to the capital and be a saint, so he himself is forced to be the hero. It never would have happened if he just let her run away. Like, he literally only met the sword because he forced her to go to the capital.
And sure, he's forced to work, but remember, it basically grants him a high amount of protection, so he's overall safe. And it's karma because he skipped work and tricked(scammed) other people into working for him without realizing it... so now, he is forced to work.
And if it wasn't for the sword, he'd have been dead.
So TL;DR He forced his childhood friend to be a saint, he ends up forced to be a hero. He was lazy and scammed people into working for him without realizing it, and he is now forced to work for others. It's just karma.