The tortured boy was reborn as as a Blind noble kid.

I was child who was taken hostage by another nation during war where we were tortured.One day the general found out my father was the general of my army and I read some of the info so they tortured me in telling them and I died after they stabbed me. And then i was reincarnated as a noble's child,but I was blind. This is the story of a tortured boy turning into king's most trusted ally.