They used Gyeong’s soul to heal the wound in Cain’s heart from the bullet. When Cain is wounded he subconsciously absorbs all the power surrounding him to heal himself without realizing.
Because Gyeong is “human” the amount of power that Cain is absorbing from his shouldn’t be possible.
Cain absorbed so much power from Gyeong that he became his full demon form, even bigger than when we first met him, even bigger than when he was fighting Satan.
They had sex because it was how they would open the door. They basically kinda were opening a portal so that when Cain was healed they could leave but Cain is a horny boy and ripped Gyeongs ass.
Anyway, when Gyeong started to disappear from his and Cains sex conscious, in the real world, Aaron (the doctor) and his little side kick saw the light of heaven come from the portal that Gyeong and Cain were coming out of
(Cain forced himself to come out with Gyeong because he didn’t want to leave Gyeong alone).
The Question lies, why is Gyeong so powerful that Cain became his OP self thanks to him, and why does he have powers that resemble the light of heaven.
Spoiler
He’s was once an angel but now takes human form.
2020-10-14 01:15 marked
Am I the only one that was a bit confused this chapter?2020-08-30 23:02 marked
For context