Kaguya-sama is one of the freshest new IPs to hit the hentai scene in the past few years. By "fresh" I mean the girls are not just cute, they have rather atypical personalities for an anime cast. Also if you're new to the series, I actually recommend the English dub! These are all high school girls but they're all 17 except for Kei who is a very mature 14 so fuckability does enter the equation for most of them.