Izumi Hoshi is senior in high school, but she led a small yakuza group in her past. After killing her uncle's murderer with a machine gun, her yakuza group disbanded. Izumi now lives an ordinary life as a high school student and works as a manager at a cafe. A dangerous situation soon awaits for Izumi.
Unfortunately the movie Sailor Suit and Machine Gun: Graduation is not yet available on HBO Max.
| Directing | Kôji Maeda | Director |
| Writing | Jirô Akagawa | Novel |
| Directing | Takashi Matsuo | Assistant Director |
| Writing | Ryo Takada | Screenplay |
| Editing | Takashi Sato | Editor |
| Sound | Shunsuke Kida | Music |
| Sound | Kanna Hashimoto | Theme Song Performance |
| Visual Effects | Shûji Asano | VFX Supervisor |
| Crew | Isao Karasawa | Stunt Coordinator |
