I am loving this game!  While there isn't too much choosing, it is still a great story with cute girl visuals! 

There is sex, but it isn't one of those VNs where the girl(s) fall for the guy after he basically rapes them.

This VN is a slow burn, at least in my opinion.  Some girls take quite a while to warm up to the PC.  Then you throw in stuff with the story, then other girls are trying to get the PC to fall for them!

I have not finished the current build of the game (0.9), but I'm really loving it!  Any BDSM I would consider minor, at least where I am in the game, about halfway through.  It really is more about romance and some kinky submissive females!  Oh yeah, and the PC getting himself a harem!