Where’d you read the novel if I may ask???
Thiss! It’s so perfect no other yaoi I’ve red compares! Do you know any other yaoi that have a similar tension, slow burn and good plot?
shutline is another that i’ve read that i think has a similar vibe honestly better imo
you can find the translator's site on Novel Updates :) the novel translation is also ongoing, a tiny bit further than the manhwa at the moment
Nothing compares but I would recommend The Foul, The Pawn's Revenge, Checkmate, Paid (also by Fujoking). These have interesting and endearing characters, a good/complex plot and the overall gritty vibe, without being "psychological" (read traumatic). The other commenter said Shutline which I love but I don't know if it has the same vibe as Payback. Still a fantastic read. Kinda similar to Shutline I'd say Wet Sand. What all these lack though, is Payback's humor! I think it truly elevates an already amazing story (=・ω・=)
My God this manhwa (and the novel) is literally MY IDEAL. Slow burn romance with lots of sexual tension. Smart, interesting characters. Amazing plot, a gritty atmosphere. Humour! The balance between plot and romance is also perfect for my taste, and the sexy parts are crazy hot. Aaaaah I love this so much ლ(´ڡ`ლ)