JKSManga
To be honest, I wasn't surprised at all that Quinn could easily turn those close to him back into Vampires/Sub-Classes, but I also see why he's hasn't already, the danger of losing them and consequences of bringing Vampires back. Plus its sad to hear that Quinn can't remove the system/his Vampirism like Vincent did, and all because he become to powerful for any object to hold that power. It must be torture for Quinn, watching everyone he's ever cared about aging and changing, but knowing full well that he will out last them all. I have a feeling that Vincent idea could be to leave, like how Ray did initially, and watch over everyone from a distance or possible gointo Eternal Slumber. Either choice is horrible for Quinn because if he leave he'll hurt his family, if he enters Eternal Slumber, he could be rewoken in the future, but would have no-one with him,except maybe Ray.
So he can't just get rid of his powers in a book and with a system to make sure it won't be misused. It's saddening that Quinn after winning can't just let go of everything and go back to a human to spend the rest of his days in peace and pass with his loved ones. I wonder what Vincent idea is I am getting a bad feeling about this.
I was hoping for some vampire wisdom from Vincent. After all, they regularly live centuries, they're used to friends and family going into Eternal Slumber, they have relationships where there are centuries of age difference and one reaches their end far before them, not to mention the undead subclass is near immortal. Instead he gets this... well I'm not sure what he got.