| Ankoku Joshi | |
| Native Name: | |
| Screenplay: | Mari Okada |
| Starring: | Fumika Shimizu Marie Iitoyo Nana Seino Tina Tamashiro Riria Yuna Taira Takeshi Masu Yudai Chiba |
| Distributor: | Toei Showgate |
| Country: | Japan |
| Language: | Japanese |
is a 2017 Japanese film directed by, written by Mari Okada and starring Fumika Shimizu, Marie Iitoyo, Nana Seino, Tina Tamashiro, Riria, Yuna Taira, Takeshi Masu and Yudai Chiba.[1] The film is based on the mystery novel of the same name by . It was released in Japan by Toei and Showgate on 1 April 2017.[2] Fumika Shimizu, one of the film's stars, joined the new religious movement Happy Science after filming and did not participate in promotional activities for the film's release.[3]