
Can anyone suggest something similar please? Like dark, psychopath or serial killer related tragic or otherwise.

Psycho (Youngdream) - the plot twist is really good, it kept me up for a few days thinking about it
Black mirror - Some may not like this but idk, I just like this, maybe because I'm a fan of psychological yaoi or something
Stalker's game - I like how both of them are messed up and that they find comfort in each other's psychotic ass

Yeah is a really controversial manwha this is why I was reluctant whether I put it here or not XD. But overall, I think it's really well written. Author stayed true to their personalities. Yes, plot is so fucking messed up but I kinda like it and hate it tbh. Also about the porn part I meAn this one "the beast must die" has like the same type of sex.....

Like I can't be the only one who got that impression. I know that Kyon doesn't look like him or anything but Ryan seemed to have a parent complex sort of?
Like when Ryan got drunk and asked Sihan to call him dad I thought it was kind of foreshadowing and Kyon was the only possible candidate. I am a bit disappointed that it didn't happen since it was a cool idea.
Although Ryan probably said that since he wanted to have someone who loved him amd in his eyes it was probably a family, something he lost a long time ago.

I am a little confused about how Mik is involved in all this. Like Sudou was dealing with chernobog and stole goods from Asami, I think. Then that was stolen and so they attacked Asami who then went into FL territory so he was involved as well. Then FL went to Mik to get his help throught the sex deal and he got involved as well. But then why did Mik meet up with Sudou (after being moved from the hospital) ? Is he the third party who stole the goods? If so why?

Sudou was making a deal with Chernobog, under Asami's nose but without his knowledge, and with merchandise and intel he only got his hands on because he worked for Asami.
That cargo was stolen by Mikhail and Mikhail offered Sudou shelter from Asami when the whole situation got out of hand and Sudou got busted.
Chernobog thought Asami had the goods and therefore went after him, Mikhail had not expected that - I don't know if he knew from whom he was stealing and that Asami would get involved.
Instead, he had been trying to weaken Chernobog for a while and might only have gotten the goods to get rid of them.
Fei Long went to Mikhail because Asami had just told him that the enemy (Chernobog) was Russian, and Fei Long was therefore certain, that he would know something about them and would be able to deal with them, if only compensated accordingly.
He went there only with Yoh so no one else would know of whatever deal he would strike with Mikhail, because he very likely anticipated what suggestion Mikhail would come up with.
Even his Baishe men speculate about whether he went with only someone outside of Baishe because he did not want anybody to know.
The author saw Sea World and asked, what if Tilikun wan gay AND murderous?
And thus, this manhwa was born...
Asking the important questions we're too scared to even imagine. A true diva and player of "what if" and "what would you do".