One of my oldies but goodies. Now that I remember back then, I originally got the idea when thinking of Alistar (League of Legends) but now I think it fits Xin Zhao a little bit better

I always forget this part:

I fight and fight for my freedom
So that I don’t become
A monster, like they want me to
I fight and fight for what was true
They keep me under lock and key
I dream of my freedom that someday may be
Possible, if I beat the rest
In this cruel thing they call a test
I’ve killed dozens, hundreds… thousands?
The bodies of my victims makes mounds, and
My soul is stained by their blood
It was once as innocent as a flower’s bud
My fights are always brutal
It feels so right and true until
They tell me who I just slaughtered
I don’t know why, but I’m still bothered
I wait for the day I break free
When the lock is broken, no need for key
I’ll run right to the people responsible
I could die, it’s very possible
But I don’t care, as long as they die
In the pits of Hell they must fry
I’ll make sure of this, I promise you
For once my killing shall be right, and oh so true…