There are artists like that, the softer their manga is, the more polished and erotic their art grows, it may look paradoxical, but it’s undeniable
Take Sense, the most softcore work by Haruki, but the drawings are wonderfully titillating the brain. I don’t know if you can fap to this, but it will certainly be a visual feast nonetheless.
The story ? A young and inexperienced man is assigned for a teaching job in an all-girls high school. The girls are all hot, all growing attached to their sensei… and they’re like mischievous little devils in miniskirt. At this point, let’s diverge from the harem route, the comical relief comes from the hero : he is nothing short of the Emperor of Delusion, lol, half of the manga is his imagination escaping his control and running wild
(For MORE stuff by this artist, Cf. The list of Haruki’s works on Hentairules)
Download the Free Hentai Manga in a Zip file
(92 MB, 227 pictures, English)
Update : useful info, it’s a narrative rule for all mangas, not only hentai : switching from white to pitch black background is the sign of a flashback or imaginary scene.