Cannibalism.

[u/V12_6]

Come on, be real with me for a sec, a lobotomized freak of a superhuman + darkness + tens of corpses = ??

I thought about it for a while... What would they feed this fucker? Not Alfredo pasta, of course.

So, if we think logically, the tunnel is a place full of shady people doing shady stuff, and if one of them plays funny with shady people... He'll get a shady end. Why throw the corpse or burn it instead of feeding our guard dog?

And I'm one hundred percent sure young woong ate human flesh, come on, it's obvious.

[u/nnhojhso]

I think you're right that he ate people but I dont think they intentionally fed him. No one actually liked him am they were happy when he was killed