I guess it's a typical otome game when out of four love interest/routes, just one of the guys is somewhat decent, with the other three progressively worse and more scumbaggish. If you take a dating sim aimed at guys, all of the girls are typically decent, but they might have varying degrees of problems in the their backgrounds that need to be solved. I have tried a respectle amount of VNs (I think), but I'm having a dfficult time remembering a single one with a cast like the one in this series, only reversed. Typically only the villains would have depictions like that. Even in a game like Grisaia, where the girls were isolated in a special school due to their social problems (and the player character is a bloody assassin), they were all basically good people, not twisted ones.