When it comes to Kamen Rider , there's no such thing as a happy ending. No matter how cleanly the series itself may have ended, you can almost guarantee that the battle isn't over yet – and in some cases, the threat the Riders face in their V-cinema/V-Cinext film might just be the worst of them all. Now the story of Kamen Rider Saber continues in Kamen Rider Saber: Trio of Deep Sin , with head writer Takuro Fukuda returning to pen the film after largely leaving the latter half of the series to other writers. In what's one of many departures this V-Cinext release takes, the story focus on protagonist Touma Kamiyama as well as supporting Riders Rintaro Shindo and Kento Fukamiya .