In previous chapter in the beginning that was not translated, Will not only was figuring out how to revive Charlotte but also been working out, cardio and stuff so him dodging the riffle seems "kinda" plausible, although them carrying a single load buckshot would be better...
Charlotte is a goddess, but it seems like William already killed people... though saving him, how cute cinnamon roll Charlotte is, it's gonna be easy.
Luckily those hunters were through similar loss and were considerate, but keeping their relationship a secret gonna be hard, they're not cautious at all...
Thanks for the scanlation!