Corruption monologue with Melanie is fantastic, easily the best part of the game. And MC is sly as a fox, how he manipulates her into abstinence with her boyfriend ( is she married to Mark? Maybe I've missed it..but I don't remember it being mentioned. And is Tiffany his daughter?), then slowly pulls her to him ( by being the only one that gives her pleasure).
I don't really care about harem ( usually it's plain nonsensical), but I really want to see MC kind of lay off the psycho vibe and we see more of love route later on.