Manga with saucy female content is nothing new at all. Ditto for erotic games. But a manga about female erotic game makers making shojo erotic games?
R18! follows Rikako as she gets a job... at an erotic game company. The entire company is staffed with the types of ladies one would expect in a manga like that. (No surprises there!)
The manga's spin is that Rikako is inexperienced sexually and thrusting her into the adult game world is a classic fish-out-of-water construct. Like Crocodile Dundee, minus the enormous norgs and purple hair.
ぷらぱ「Ｒ１８！」 エロゲーメーカーのおっぱい星人（♀） [Akiba Blog]