Ji Yu's roommate Jiang Xun never grows old, never dies, and has no footsteps. At first Ji Yu thought he had encountered some kind of pervert - but later he discovered that Jiang Xun was not a human being at all.
It is a pseudo-person that feeds on humans, uses fear as its food, and uses memory modification as its disguise. And Jiyu is the only prey that it "can't bear to finish".
I really want to kill you. Your extreme possession is just to assimilate me?
I heard your scar is causing you a lot of pain? How about I tear it off and show it to you?
"Jiang Xun, am I too indulgent to you?"
"Am I too low-key to you, Ji Yu?"
Inhuman feeling late stage strong / pathological possession / natural BE / recommended 18+
Concept: How does a non-human existence use its own way to connect with a human being - not love, not hate, but an unnameable thing sandwiched between appetite and reluctance.