I am sure I have read manhwa from the same artist because the art style is so so familiar. I am sure the name of the author is differently feed in here because they may have other manhwas .....
Edit : for anyone interested in the artstyle here is the other manhwa that jim/j1m did
https://www.mangago.zone/read-manga/he_he_jim/
1. The MC(uke) even tho he is portrayed like a victim/damsel in distress/weak, he is surely not like this. His character really has layers to him like an actual human is. We can say he is more close to reality kind of a character. He is surely two faces, a bitch, a bad friend and a constant good example of "how rich people create their forced imaginary misery", he surely doesn't have anything miserable in his life but is somehow in his own delulu created misery.
2. The ML(seme), like someone already mentioned, he GASLIGHTS, GATEKEEP, GIRLBOSS really well. Given he is full of schemes and had somehow connection to two murders and at a position where say the MC says "him being more kind" might be troublesome. A perfect match to very layered ML.
3. A mysterious dead character which we know a lot about even tho he is mysterious. Like??? Him being a yapper for god's sake
This manhwa could near 9/10 but is not because that would mean it just one point less from perfection so a solid 8/10 does it all the justice taeshin couldn't get.
Well RIP my fav character taeshin you will be missed.
I would be so salty if I don't get gabin X Sacha etra stories PLEASE.... THEY DESERVE A WHOLE SEPARATE SERIES BUT PLEASE SOME 10 EXTRA WOULD BE APPRECIATED ⁄(⁄ ⁄·⁄ω⁄·⁄ ⁄)⁄