I picked Nao's route first because I find her and her idol shenanigans a lot less interesting than Kirsti and her Not-Margit and the Finnish Not-Hounds, but apparently her route is actually the best part of the VN so I guess we'll see.
Minatosoft are kinda cowards for doing an Onee-san /ss/ fetish VN and the onee-sans are both NBR. This whole VN reads like the guy who wrote all the scenes where Momoyo molests Yamato became the head of the company and mandated every heroine now be that.