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.
Unfortunately the movie Junk Boy is not yet available on HBO Max.
| Production | Tomoko Sato | Producer |
| Directing | Katsuhisa Yamada | Director |
| Production | Masao Maruyama | Producer |
| Sound | Yasunori Honda | Sound Director |
| Writing | Yukihiro Matsushita | Screenplay |
| Visual Effects | Hiroshi Hamasaki | Character Designer |
| Camera | Kinichi Ishikawa | Director of Photography |
| Art | Yamako Ishikawa | Background Designer |
| Visual Effects | Jiro Kanai | Key Animation |
| Visual Effects | Yoshinori Kanemori | Key Animation |
| Art | Ryo Kono | Background Designer |
| Art | Youko Nagashima | Art Direction |
| Visual Effects | Tensai Okamura | Key Animation |
| Art | Akira Yamakawa | Background Designer |
| Production | Hideaki Suda | Executive Producer |
| Production | Toyoha Ryujin | Producer |
| Production | Yasuteru Iwase | Producer |
| Sound | Shiro Sasaki | Music Director |
| Writing | Tatsuhiko Urahata | Screenplay |
| Writing | Yasuyuki Kunitomo | Comic Book |
