Sometime ago Seth had had Treuchi as a prime and available candidate to try out his ability to transform others to whatever species he was, but unfortunately, the old man just had to go and be stubborn and in the end, Seth had gotten caught up in the moment, and now the man was 6 feet underground, well that was if his son was filial enough to give him a proper send-off, else his body parts were likely digesting in the bellies of different hyenas.
Seth had no idea or guide on what he was doing, all he did was think about turning Dorian, and following the somewhat imaginary voice whispering in his head, he bit the woman's neck and began sucking her blood.
Instinctually, Seth knew that he didn't need to feed on the woman for the transformation process, but this was his first time peacefully feeding on someone since he broke through to the soldier level, and he wanted to enjoy the rare moment.