Toshihiro, a photography school dropout, is obsessed with secretly photographing the lovely Seiko. He is in love with her and hopes to lose his virginity to her someday but is unaware that Seiko is attracted to him as well. After spying on her with one of her professors, Toshihiro becomes jealous and swears to forget about Seiko. As they both struggle with their sexual urges, a series of misadventures bring them closer together.
Unfortunately the movie Zoom Up: Seiko's Thigh is not yet available on HBO Max.
| Production | Rou Miura | Producer |
| Sound | Hachirō Kai | Music |
| Crew | Kazumi Sugimoto | Cinematography |
| Editing | Jun Nabeshima | Editor |
| Art | Heihachiro Watanabe | Art Direction |
| Sound | Eiji Kimura | Sound Recordist |
| Directing | Kōyū Ohara | Director |
| Writing | Shusuke Kaneko | Screenplay |
| Directing | Osamu Murakami | Assistant Director |
