18+ Shimazaki Nana@Oshigoto Boshuuchuu

One day, manga enthusiast Yuuta Oshino is asked for help by his neighbor, Nana Shimazaki. But she shows him an erotic drawing that she drew. Could it be that she's actually his favorite mangaka who happens to have the same name?! And further, she makes an absurd request of him...?!

(Source: Takeshobo, translated)