Nerd Project (RECOMMEND) , Love Shuttle , Semantic Error , A Guy Like You , At The End Of The Road , Checkmate , No Love Zone. I'm sorry if those aren't what you looking for. There's much more but I cannot think of any.
salmon: @Kesmeray BL RECS PLEASE ENEMIES TO LOVERS
Blood Bank (dark romance, control, and supernatural)
Yours to Claim (not exactly mafia-themed, but it involves control and possessive love)
Thirst (crime, dark romance, obsession)
Sadistic Beauty (mafia, crime, gang life)
Path to You (mafia-like themes, crime, etc.)
There’s also another manhwa: Walk on Water, by the same author as Under the Green Light. I haven’t read it yet, but I’ve heard it involves dark themes, emotional conflict, and power imbalance.
(I apologize if these aren’t what you’re looking for. They involve themes like darkness, crime, obsession, mafia, and similar genres.) Ik there's more but I cannot think of any more
TinyWiny: @Kesmeray DO YOU KNOW ANY BL THATS SIMILAR TO THIS ONE??????!!
now why a cliffhanger.
