I hate it, but I am only a hero because of this shield.
It seems there is an influence from being the companion of a hero.
Raphtalia is superior to normal Demi-humans because of the effects from Slave trainer Shield and Firo's abilities are on par with her despite the level difference.
I don't know how much effect Growth Correction had, but it seemed to be quite large.
The effects of Slave Trainer Shield and Demon Trainer Shield were good. I wonder what effects Friend Shield would have, if that even existed.
Basically, existences called companions are essential for a hero.
Friend huh...... something that I don't have.