Since the setting of the game is having a city full of pervs, will the "good" people in 0.1 like the bar owner or the pure twins brother land their hands on angel eventually? Or they will still stay as angel's angel and having more good people to help her in the future? Kind of boring if every male character appear in the game is just some bad guys.
There's a particularly important snippet from the description of the game:
Yes, this is the 'typical' game where the world is out to get you. Despite the many games like this one, our goal is to make something different. A game where the world itself actively hunts, corrupts, and blackmails you—not because you failed or 'let them,' but because the world is designed to try to get to you. You’ll face easy and difficult choices all the time, and how you respond will shape the outcome.
Everyone in this world is a bad guy that wants to get their hands on Angel in any way possible. If you read the lore in the introduction properly, the population of women has declined severely, so it's not an exaggeration that most male characters there are sex-deprived perverts who will go to any lengths for sleeping with a female.
Angel is under the landlord's protection... another important aspect. He's basically shielding her from the harsh world that lies outside. You'll notice immediately that whenever Angel steps outside of the house, she's ravished at every place she goes—College, Train, Bar, etc... The only place she's truly protected is the house, but even then, she's not fully safe there either.
No doubt, there will be good people and saviors, but it's likely they will have their own secret agendas.
PS. The Twin brothers are already perverts. One of them visits Angel in the night, and the other has a crush on her, and pretends to be innocent and clueless to get into her pants. Angel is oblivious to both of these. Currently, only Fran is the pure character who hasn't displayed any lustful nature or perverted intentions towards Angel.