|The World is Full of ....|
|Romaji Title||Sekai wa (___) ni Michiteiru|
|English Title||The World is Full of ....|
|Airdate||April 3, 2014|
|Opening||Soushou Innocence by Maaya Uchida|
|Ending||Paradox by Ayaka Suwa as Tokaku Azuma|
|Next Episode||Episode 2|
The World is Full of .... (世界は(___)に満ちている; Sekai wa (___) ni Michiteiru) is the first episode of Akuma no Riddle anime series and was released on April 3, 2014.
The episode's scenario was written by Kiyoko Yoshimura with storyboard by Keizo Kusakawa. The episode was directed by Shingo Tamaki with the animation directed by Mayuko Matsumoto and Tsubomi Akabara.
A skilled assassin named Tokaku Azuma is transferred into Myōjō Academy's 10th year'S "Black Class", tasked with identifying and killing a target amongst her twelve classmates, the rest of whom are also assassins. At her first homeroom class, consisting of five of the total 13 students, Tokaku finds herself drawn towards a kindly girl named Haru Ichinose, believing she may be the target. As Tokaku spends more time with Haru, who is revealed to be her roommate, she notices some knife wounds on her legs. After encountering her various classmates throughout the evening, Tokaku, who had also been tasked by her master, Kaiba, with solving a puzzle reading "The world is filled with (___)", becomes bewildered when Haru suggests 'forgiveness' as an answer.