This person is incorrect.
Technically, yes, in one of the originally published bonus chapters… that does happen. That is not how the story ends, it’s not part of the main story, and it is NOT still canon. It will almost certainly not happen here, as that chapter was later replaced by Juyeon fucking Jiwook with a fucking machine due to the response from readers.
The collar is because of the pet play elements. Juyeon often treats Jiwook like a dog. They are doing pet play.
How the story ends is:
Jiwook gets brutally raped again. Juyeon tells him about what Jiwook did to him when they were young, why he is doing this to him. Jiwook nearly gets killed by the gang rapists and is severely traumatized. He stays with Juyeon, who treats him kind of like a pet. Jiwook almost kills himself because he starts hearing the voices of the people who gangraped him constantly, so Juyeon sends Jiwook to therapy. They are in a toxic, co-dependent relationship where Juyeon feels weird and guilty about how he ruined Jiwook’s life’s and Jiwook cannot function or live without Juyeon’s help and also believes he deserves Jiwook’s bad treatment and abuse and pretty much hates himself. Jiwook also gives up his family inheritance, I believe, to stay with Juyeon?
I never said thats how it going to "end" I said that we are gonna see him get butt raped by a dog its in the books and the comment section has been talking about it as well, just letting you know there is absolutely no vanilla in this manwha almost everything thats been in the books has been thrown into the manwha you've been warned atp. ╮( ̄▽ ̄)╭
?? Your response to “please spoil the ending” was “he gets fucked by a dog” so you technically, literally, you did say that is how it’s going to end.
Regardless, though, that doesn’t matter too much. Ultimately, what I’m saying is I read the story. The dog thing isn’t canon. It is a deleted and replaced bonus chapter after the story ends.

someone who has read the novel, plz spoil the ending !