Ahhh everything makes sense now. So after being captured, Mugo will be transformed into a Yeommae, a cursed spirit from Korean shamanic folklore created through the ritual sacrifice of a child (but in this case a teen/young adult). His soul is trapped and enslaved, becoming the source of supernatural power for Jaheon’s family. As we see/know is the present the torment splits his soul into 4 fragments and causes him to become very unstable. It also makes sense why present Jaheon is disgusted with the “root” Mugo, because despite Jaheon being the person who led his family to Mugo in the past, he was still abused.
Ahhh everything makes sense now. So after being captured, Mugo will be transformed into a Yeommae, a cursed spirit from Korean shamanic folklore created through the ritual sacrifice of a child (but in this case a teen/young adult). His soul is trapped and enslaved, becoming the source of supernatural power for Jaheon’s family. As we see/know is the present the torment splits his soul into 4 fragments and causes him to become very unstable. It also makes sense why present Jaheon is disgusted with the “root” Mugo, because despite Jaheon being the person who led his family to Mugo in the past, he was still abused.