I simply adore this artwork. Arguably, one of the top ten best cg here.
Story is going fine. Although we don't know why charachters are accepting so easy being blackmailed by Jason or David it will be interesting to find out what dev has on his mind. Would it be elaborated blackmail or childish porn blackmail (i'm routing for the 1st of course). As for blackmailing 2 main chars, why Bi & now Ang are accepting all this shit, dev did excellent job. When you start to hate Bi as selfish whore who is willing to sell her boyfriend and bestie, dev introduced stepfather scene where for the moment you start to understand why she is desperate to leave no matter of costs. Ang is real friend, knowing Bi's situation she is ready to do even things against her principles just to help her friend. This is best seen during her sex scene with Jason. Her face show no pleasure, even disgust toward this act and her fucker. It will be nice to keep her strong minded, defiant, not to submit herself to Jason or David.
Noticable, there is no decent, likable charachter (except Ang who is strong and suffering shit just to help her friend who is obviously using her). Even boyfriends are pathetic loosers that don't deserve girls neither.
I'm just hoping there will be payback time at the end for abusers.
Small advice: find likable guy or girl which are going to help Ang in ruining David, Jason, their buddies and their shaddy business (maybe undercover cop) so she can maybe end up with him/her at the end. If you choose that path.
I saw what Raknor suggested, he has some good ideas. However getting rid of David in such early phase is not good, no matter how much i dislike him too. We should not idealize Jason neither, since he is not better than Jason. If I'm asked they both should pay at the end. Meanwhile, they have to offer us more sex.