Grace getting the best possible rating for the day, it was actually Ren being lucky. Sarmonica, Tera, Scarlet and Mirtha, all four of them were fighting the monsters and were running all over the places, sometime even disappearing for quite some time.
So if any of them were chosen, Ren would have a hard time having a lot of sex with them. But that was not a problem for Grace.
She was staying with Ren in order to both protect him and to stay in a location where all the ladies could return quickly and get treatment if they were injured. So Grace was truly the perfect lady to have gotten this high rating.
Even before the activation of this new skill of his, Ren had been playing with Grace's boobs all this time while Grace was busy casting quite a few complex spell to make sure that even in the worst case scenario, none of the ladies here would be in kind of immediate danger.
