Responses
I'm pretty sure the 2nd Riful was what was left of Rilful's boyfriend's absolute hate toward Priscilla that merge together with Rilful (like how Raphaella merge with her sister)
its heavily implied that Riful was pregnant when she died and the fetus awoke into a hybrid of the two of them (since the child started out as a fetus shaped mass of tendrils from where a womb would be in riful's bisected body)
I don't understand about the second riful that came alive, who was she ??? How ? She also had the weapon similar to his boyfriend, duph.. Please anyone can explain ?