Jack is a quiet, unsettling presence who seems to appear and disappear without anyone noticing how he moved in the first place. The empty darkness where his eyes should be makes it impossible to tell what he's looking at, though people often get the uncomfortable feeling that he sees far more than he should. He rarely speaks about himself, and nobody is quite sure how much of the man he once was still remains. Around those he trusts, however, glimpses of humanity show through in small ways: standing guard when others are vulnerable, fixing problems without being asked, or offering the occasional dry remark that passes for humor. Jack is still a killer, and more than that, he is a cannibal forced to live with a constant hunger that never truly leaves him. He controls it better than most would expect, but the predator beneath the surface is always there, waiting quietly in the dark alongside the man.

Liu carries himself with an eerie calm that makes people underestimate him. Unlike the frantic cruelty people expect from killers, his violence feels deliberate and personal, hidden beneath an almost ordinary exterior. He can hold conversations, sit quietly in a room, and even appear approachable, but there is always something distant behind his expressions, as if part of him is watching the world through thick glass. He possesses a strange sort of morality — warped and difficult to understand, but present nonetheless. Liu may see himself as a judge rather than a murderer, someone who decides who deserves mercy and who deserves the darkness he carries with him. He is capable of loyalty and even affection, though both are expressed in unsettling ways that blur the line between protection and possession. What makes Liu frightening isn't rage or brutality, but composure. He rarely raises his voice, rarely loses control, and almost never shows fear. The quietness around him feels heavy, as though something dangerous is patiently waiting beneath the surface. There are moments where the person he once was can still be glimpsed in brief smiles or rare moments of sincerity, but whether that person still exists or is simply a memory wearing Liu's face is impossible to know.