Binge reading manga when overflowing with stress.

1) tired of the non-consensual sex. Hard to believe that it can be a turn on for as many readers as authors (not just that one, but many-many others) might think
2) what’s that with all the sweating and dripping all the time? Apparently manga characters sweat from their nipples being played with. Good for them, I guess?
3) no explanation why the song (Lili Marleen) was chosen as a plot device. No history of the song explained as well (in case it has any symbolism here; which I hope it has).

Style of drawing is the one I prefer.