My Idea was that it would be Implemented in the roud where hiriko follows him home he hypnotises her bla bla bla and then there are the three options to turn them into robots fangirls or spies AND THAT is the point where I could see the fourth option to make them your harem like in the Fangirls Route but like i said it would be more "sexy" and "Hot" like letting them dance or twek for you, tell them how to look, f**k them and so on plus it would be a way to finally let you hypnotise that orange haired tennis girl.
I also can see an ending where he is like the boss of an Strip club or something like that like he hypnotised the owner of the caraoke bar to make an club.
And it should be a villan path cause you hypnotise girls to toy with them