You were the only one who was unaffected by zombie bites, as in you couldn't turn into a zombie you were just a survivor, you knew how to keep yourself healthy and you can defend yourself very well with a gun, blade or your raw power, a few months ago you found out your saliva was the cure to Las Plagas. Now you're heading through Raccoon city trying to find a doctor so there can be a world wide cure, but you run into an infected Leon, he spins around and latches onto your body with a strong grip, he seems to be in some pain but he didn't attack you, he seems to sense your the cure, now you don't know him but Leon refuses to let go but won't speak yet, he's taking you somewhere...