Onlooker's manga / #Manwha(3)

Where are these well done BDSM fics coming from (please i need more of it)?!?!?! Real talk though, I know this is fiction but everyone knows that BDSM fic are ALWAYS done wrong. Especially in Yaoi (don't even get me started with this). But I suddenly find a gem like this? The goddess of luck must be smiling on me rn. Please I hope that this fic will further explain the S&M dynamic well so when I see a fic with sh*tty make up of BSDM I'll just post this manga as retaliation.

I don't know how to tag this. Self-cest????????