I'm going to be brutally honest

At first I really liked this story, I thought it was interesting and fun, and this was like my top manhwa at that time. I remember the author said in the author's note that she had someone helped writing the plot until s1, but in s2 she doing it all by herself. Tbh, I think she really need help in writing the plot. Up until s1 it still fun but after s2 it just went downhill. There are several times where I really want to drop this manhwa, but I still stay until the end because I just love Dooshik and Jooha so much, but tbh the overall plot doesn't really give them justice.
There are some unexplainable and confusing things, for example like Dooshik's sister. We never have any explanation about Dooshik's family nor if we knew if he had a sibling, and she just pop out of nowhere. And also the twins. I don't think their appearance is necessary and what is their purpose anyways? Maybe he did killed Pilwon but i think even if the twins didn't appear in this manhwa the plot still would've worked out. And tbh, after the twins appeared the plot just got worse. And I thought at first Choonbae would have a big role in this story, but turned out he just doing nothing other than giving Pilwon blowjob.
And is it just me or I feel there is a change in Dooshik's personality. I admit he did have a glow up on his looks and I love it. But his change in personality kinda questionable, he used to be just a really dumb guy who doesn't even know how much a pearl worth. And throughout the end his personality became more cold and cunning, and you wouldn't even thought he used to be dumb. If you compare Dooshik in recent chapters and him in early chapters, you wouldn't think that he is a same guy.
At the first time I read this manhwa, i would rate this 8.5/10 but after reading it until the end I think i rate it 6/10