You mean Juyeon? Does juyeon know jiwook (mc) cannot remember the past? If so. Juyeon knows Jiwook cant remember. Actually Juyeon was there at the hospital with Jiwook when he lost his memories. That's also why Juyeon is so adamant on his revenge, how come Jiwook is just able to live life with 0 recollection of what he did to Juyeon, while Juyeon and his mom bare the burden of carrying their trauma.
As for the ending, imo, "Revenge" (thats the OFFICIAL title of this bl btw) isnt about who deserves what. If jiwook deserved what juyeon did to him, or if juyeon is being too harsh on jiwook. I believe the author's purpose for this story is to show how much revenge can lead to total destruction, not just for the victim(jiwook), but also for the one seeking revenge(juyeon).
Some may disagree and well, it is what it is, but the ending in the novel is neither satisfying or disappointing for me. Its just unfortunate for jiwook and juyeon. (Tho i did see a comment here saying the artist has plans of changing the ending in the manhwa. Idk how true that is tho.)
Alright I know the ending now, but I js wonder, why make the ending like that? Why not give the fans what they actually want for the story, all there is to this story is things getting progressively worse, literally 0 satisfaction or atleast a bit of enjoyment reading this slop, also quick question, does jiwook ever know that the times he did all this to the Mc, his memory of his abuse and rape to jiwook were fully gone due to an accident or sumn, and he was technically js abusing a completely new person who doesn't even know why this is all being done to him, does he find out but still continue to abuse the Mc?