Spread over three time periods (Summer 10 Years Ago/Summer 5 Years Ago/This Summer), Lost Virgin tells the tale of good-time girl Chisato (Sasaki), hungry for new experiences yet ultimately in search of emotional fulfilment.
| Directing | Toshiki Sato | Director |
| Writing | Shinji Imaoka | Writer |
| Camera | Yasuhito Hironaka | Director of Photography |