Honestly this manga has been pretty disappointing for awhile now. It starts off with a girl being caught masturbating and some great fan service and has since then been pretty much nothing, only the occasional lewd panel per chapter and pretty much no advancements in any way at all in these 18 chapters. Thinking back pretty much nothing of any importance at all has even happened, then you had stupid stuff such as the other girl sniffing panties and being a pervert for literally no reason and the addition of the rival, what was even the point of the rival? All she did was take the duo spot away from the MC which was honestly a horrible choice.
I know he has a new work coming, hopefully it's better than this.