Junk Boy(1987)

Overview:

Overconfident 23-year-old Ryouhei somehow lucks into a job at the lucrative skin mag Potato Boy, with his only qualification being an abnormally high sex drive. Immediately smitten with the publication's prestigious editor Yuki (and just about every other female colleague), Ryouhei shows a libidinous instinct that could take Potato Boy to the next level — if he can ever take the job seriously.