Newbie manga artist Aria Minami is absolutely head over heels for her childhood friend, the erotic manga artist Shinobu Sairenji! One thing leads to another, and Aria ends up working as Shinobu's assistant♪ She's eager to serve him in every way she can, but her exposed heart—and body—might be getting a little out of control...! Add in Shinobu's brocon little sister, Airi Sairenji, and their wildly imaginative editor, Yukino Shinonome, and the steamy days just won't stop!