It doesn't. Oddly enough I got that scene to work once, out of nowhere, while every other attempt fails upon trying to retrive cg with a line of translated dialogue instead of file address.
Talk to the blond girl and select check progress or whatever it was. If she says something like 'see more stories' than that means that you need to grind more. Check the fairy by the lower lake in town to see who has special dialogue that day, and see that. Level up more, upgrade the house, things like that. You need to be on Main story 3 in adventure notes to fight bosses
Well... The description is highly overdone about that trauma, because there's not any trauma at all. In fact, she just thinks it was a dream at first, and when she hears it wasn't, she rather accept it somewhat like ,,oh... So it wasn't a dream, huh?". You can choose to have sexual intercourse with monsters, but it most likely work like they will rape her during the battle and when You lose it - but it gives You a profit in both situations, because every rape train some part of Your body, so when You get raped again, You take less damage, for example: Heroines vagina is raped several times - further vaginal rapes will deal less damage, and so on. In addition You get money for each defeat anyway, so it's a way to get rich. But that's not the only way, of course.
Mechanically it's a "corruption" game, meaning not actual corruption but a lewdness stat (translated as "Nasty" here) which increases which pretty much every sex scene including fingers-only masturbation. The higher the stat the more into it she gets, at a few hundred the dialogue is full of hearts and you can run around naked.
