So far it's just a prologue, but apparently we are in for a big update soon. Currently it is just a like AVN with pretty cool animations, it looks to be just a classic story game so far, but yea like there's only around 30 mins to 1 hour of gameplay right now, so I'd say maybe wait for the update to drop, cause the art and story so far are pretty top notch in my opinion.
Unfortunately,I've played it,I finished goddesses whim yesterday,so I downloaded from the sin,it looked so good that I was expecting a lot,only to get an hour or 2 of gameplay I was severely disappointed,tho I might replay it after the update since it gave off an impression tho I did hear that the update is gonna be small(except for the actual gameplay system,so atleast story wise ig) but idk I didn't read the progress report so yeah,for now I guess I'm gonna play heros harem guild.