OK, actually, whether it's Nono or that Soapland in the alley. Players can avoid it all.
If you realized something was weird, you could have not gone to that place, or not called that number on the flyer from the beginning.
Because Nono is a sub-character. She won't have any impact on the main story.
So you can completely ignore her. Just don't call her, and she won't even show up in your characters list.
For me, it's an eroge. but there's no way I'm going to be able to let MC have sex with any main character so fast.
This kind of plot gives me a chance to arrange the eroscene, so I need it to make up right now.
For Nono, she'll tell you what she thinks and why with her own story.
For that woman in Soapland... I even forgot which NPC card she was.