I'm not sure what you mean by "normally slightly or firstly", but there is an optional series of side events where the protagonist ends up being forced to serve a demoness mostly against her will, which includes some scenes like being spanked for disobeying. There's also some scenes where she and other characters end up being possessed by a ghost both consensually and non-consensually, though I don't know if you'd count that as "femdom". Same for the slime that forces itself on her as a bodysuit.
There are also lots of monsters in the game that sexually assault the protagonist, some of which are monster girls.