So this is a blatant story about a real and parallel worlds; about another Chosen One
As usually for this type of stories, the protagonist is an unlucky owner of an arm-size dick used to fuck all pretty 3D dolls around him.
Nothing special, you may think. And you will be right at first glance!
What gives the game some charm is the pace of relationship development with almost every girl/woman (except for the cousin-policewoman who is
extremely rushed).
Another great design solution (in my opinion) was to make the story consist of mini events AND to give clear hints on how to activate the events BUT be silent about what the events will be.
So, the "cookie-clicker" effect is quite effective
-- you do smth, you are rewarded for it. That's rare in porn VNs nowadays, where you either get tons of everything immediately, or nothing at all after investing tons of time.
And the last thing I'd like to mention, the supposed MILF focus is misleading a little bit: in v0.4 there are only 3.5 MILFs out of 11 romanceable character. Everyone else is either around the protagonist age, or a bit older, but nowhere near MILF.