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