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 |
| Art | Youko Nagashima | Art Direction |
| Art | Akira Yamakawa | Background Designer |
| Sound | Yasunori Honda | Sound Director |
| Art | Yamako Ishikawa | Background Designer |
| Visual Effects | Jiro Kanai | Key Animation |
| Visual Effects | Yoshinori Kanemori | Key Animation |
| Visual Effects | Tensai Okamura | Key Animation |
| Production | Masao Maruyama | Producer |
| Writing | Yukihiro Matsushita | Screenplay |
| Visual Effects | Hiroshi Hamasaki | Character Designer |
| Camera | Kinichi Ishikawa | Director of Photography |
| Art | Ryo Kono | Background Designer |
| Production | Yasuteru Iwase | Producer |
| Sound | Shiro Sasaki | Music Director |
| Production | Toyoha Ryujin | Producer |
| Production | Hideaki Suda | Executive Producer |
| Writing | Tatsuhiko Urahata | Screenplay |
| Writing | Yasuyuki Kunitomo | Comic Book |
