
Can someone explain the brother situation to me? Like I`m not understanding anything?

Next two chapters are all about the twins. From what i understood im Russian: Jiwook (evil twin bro) was always jealous of Siwon (our guy) because he was better at everything and more popular and so he wanted to make him disappear? Obviously driving him into suicide seemed like a legit option.
I know there's the novel that continues the story but like, what about the manga? is this really all of it???? ( ̄へ ̄)
Apparently the manga is on hiatus and these are all the available chapters. What a pity, this was very interesting.