Same here I was also wondering if the ML had been abused by the grandfather
Gosh I hope not. Making this story even more convoluted, but at least some connection to the story of why he's treating SiHyeon like crap.
I can't say ML is doctor. I feel he's just going after whoever killed his brother.
That's a possibility, considering we don't know yet how he ended up being a "hunting dog" for Sihyeon's father. I wanna know how it happened too. We'll probably wait for months for this to be answered.
Oh so the ML is the hunting dog of the MC's deceased father? So, does this mean him wanting to take over the conglomerate a direct order before the MC's father died then? But since he's already unleashed, he got his eyes set on Sihyeon now while still taking over the company? Is that it?
If I think back, there's a chance that the ML was already eyeing Sihyeon even before his father died but as he is a "hunting dog", he didn't have any power to do what he wanted but then since Sihyeon's father died (I don't think this was because of the ML per se), his chains were unleashed and it made him capable of doing it. Talk about crazy obsession then lol. Living up to the title "Beast of Desires" truly. I still don't understand the involvement of the doctor but my closest guess is he might be the 2nd ML.
My other theory is that the ML didn't initially want Sihyeon's involvement in this but since Sihyeon himself went after him, he decided then and there to have him involved (w/c I think complicated things for the ML in the long run).
I still wanna know what is the ML's relationship with Sihyeon's grandfather. Was his grandpa someone the ML knew from the past? Most probably. This opens to a lot of possibilities for the ML's backstory and how it ties up with Sihyeon then.