Synopsis
10 years ago, five girls were kidnapped by Yō Haibara, a suspected serial killer, from their rooms in a mysterious sanatorium on Rougetsu Island, located south of Honshu. They were eventually rescued by Choshiro Kirishima, a detective pursuing the criminal. Several years after the incident, two of the girls, Marie Shinomiya and Tomoe Nanamura, died mysteriously. Fearing to have the same fate, the three remaining girls, Ruka Minazuki, Misaki Asou and Madoka Tsukimori, all now 17 years old, return to the island to recover their lost memories and learn the truth about the events that occurred 10 years ago. Choshiro also returns to find Ruka in her mother's request.
Read more about this topic: Zero: Tsukihami No Kamen