Hello 🙂 And it sure seems that way, doesn’t it? However, Koogi did say during the hiatus after s1 that she intended on having KS go for 3 or 4 seasons so… 

If I’m honest and unless Koogi changed her mind, considering that Seungbae’s investigation seems to go quite well in s2 (even though he has only luck and zero proof), I’d rather see a premature end for him instead of for KS. 

Seungbae is clearly not on Sangwoo’s level anyway, and I hope I’m not offensing any fans of his by writing this, because you could call this a slight inexperience on Koogi’s part since his involvement really borders on plot convenience. I mean, not only does Seungbae not have any proof that might incriminate Sangwoo for any murder, but also most of his “discoveries” are due to pure luck

only: 

• he had literally zero way to link the CEO girl to Sangwoo in the first place
• and to be convinced that Bum was a victim and not Sangwoo’s accomplice when Bum was alone the first time they met (back in ch1) is also pretty simplying things

So personally, despite not having any proof against Sangwoo and because Seungbae is now aware of certain things, I think that his luck will run out before Sangwoo’s or KS ends, in case KS is indeed supposed to have one or two more seasons. As with everything I could be wrong, though. 🙂

What I really like about the new development though is that the timing for Seungbae to make his move on Bum is perfect to trigger some doubts in the readers’ mind (#drama).
I mean, considering what happened between Bum and Sangwoo just before and how tired and uneasy they both seemed to be in the new chapter…

It would be easy to imagine that Bum might see in Seungbae a potential savior and it doesn’t help that he didn’t tell Sangwoo about him back in the restroom. So kudos to Koogi on this one, because it was all written that way and with this peculiar timing to have the readers consider a potential “betrayal” by Bum.

Personally I’m not buying it though xD because Bum literally has zero reason to betray Sangwoo, even if things went a little… complicated between them lately, if just because Bum killed Jieun, so Sangwoo was right: he and Bum now share the same fate, because Bum was an accomplice to the murder of the other guy and Sangwoo is Bum’s accomplice to Jieun’s murder. 

Bum selling Sangwoo to Seungbae would be a strong equivalent to him being convicted for at least two murders and besides…

…I think the latest chapters kind of prove that there is really nowhere else for Bum to go and nothing else for him to even consider if Sangwoo doesn’t keep him by his side. Jieun’s murder definitely played a part into him thinking that, but his horrible past with his uncle also definitely factors in this idea. That’s why Bum telling the cops about Sangwoo wouldn’t make a lot of sense in my opinion.  

So, is it really going to be a cat & mouse game when Seungbae doesn’t have any proof and Sangwoo’s only alive victim very probably won’t speak against him? I’m not sure. xD 

Anyway, sorry for rambling, I hope it answers your question somehow. Have a nice day Anon 🙂