Riddle Story of Devil

Riddle Story of Devil (Japanese: 悪魔のリドル, Akuma no Ridoru) is a Japanese manga series written by Yun Kouga and illustrated by Sunao Minakata. It was serialized in Kadokawa Shoten's Newtype magazine between September 2012 and November 2016. The story is set in Myōjō Academy, a private girls' boarding school, where twelve students in the 10th Year Class Black are actually assassins tasked with eliminating their classmate, Haru Ichinose. The assassins are promised any wish if they succeed, but will be expelled if they fail. However, one of the assassins, Tokaku Azuma, decides to protect Haru instead. The series blends school life, action, suspense, and yuri elements, depicting the bonds and friendships between the girls amidst the constant threat of assassination. An anime adaptation by Diomedéa aired from April to June 2014, comprising 12 episodes. The anime retains the manga's core premise and plot, with some adaptations. The opening theme is "Sōshō Innocence" by Maaya Uchida, and each episode features a different ending theme sung by the voice actresses involved. Related media include drama CDs, music albums, and merchandise.