Presumably the same Rosa from Jad's original ARG. Gave advice to Mason and the group as he approached the Fishery to save Doug, then promptly departed to play her role when the original Moon Children's site was first discovered.

YSHDT Arc Douglas P.PatremVincent AdamsDrownMasonHelperRosa
Dead Arc SKMTylerJacobJohnKevin"K"Matt R.DianaBENEzekiel Thoth
Lunar Children Arc Jeremy JarvisHunter Jarvis