Comment by SmallPP but i made her proud on Childhood Friend of the Zenith - Chapter 89

So basically as you already that entity is called dok go jun aka the blood demon and he is a calamity who tried to destroy Zhong Yuan but he

Was stopped by the 5 heroes but in like 5ish chapter from now we learned the blood demon was not defeated but instead sealed away by separating his consciousness, vessel, energy and his 5 senses and had then sealed in seperate location but he is so powerful his vessel and energy manifested and living being so wi seol ah is the living manifestation of the blood demons vessel and the heavenly demon is the manifestation of the blood demons energy the senses also have their own manifestation but I won't spoil it unless you ask

Was stopped by the 5 heroes but in like 5ish chapter from now we learned the blood demon was not defeated but instead sealed away by separating his consciousness, vessel, energy and his 5 senses and had then sealed in seperate location but he is so powerful his vessel and energy manifested and living being so wi seol ah is the living manifestation of the blood demons vessel and the heavenly demon is the manifestation of the blood demons energy the senses also have their own manifestation but I won't spoil it unless you ask

Was stopped by the 5 heroes but in like 5ish chapter from now we learned the blood demon was not defeated but instead sealed away by separating his consciousness, vessel, energy and his 5 senses and had then sealed in seperate location but he is so powerful his vessel and energy manifested and living being so wi seol ah is the living manifestation of the blood demons vessel and the heavenly demon is the manifestation of the blood demons energy the senses also have their own manifestation but I won't spoil it unless you ask

Was stopped by the 5 heroes but in like 5ish chapter from now we learned the blood demon was not defeated but instead sealed away by separating his consciousness, vessel, energy and his 5 senses and had then sealed in seperate location but he is so powerful his vessel and energy manifested and living being so wi seol ah is the living manifestation of the blood demons vessel and the heavenly demon is the manifestation of the blood demons energy the senses also have their own manifestation but I won't spoil it unless you ask

Was stopped by the 5 heroes but in like 5ish chapter from now we learned the blood demon was not defeated but instead sealed away by separating his consciousness, vessel, energy and his 5 senses and had then sealed in seperate location but he is so powerful his vessel and energy manifested and living being so wi seol ah is the living manifestation of the blood demons vessel and the heavenly demon is the manifestation of the blood demons energy the senses also have their own manifestation but I won't spoil it unless you ask