Riddle Story of Devil

Riddle Story of Devil

Available on iTunes, AnimeLab
Thirteen students in all in Year 10, Class Black. Twelve assassins, one target. The first to kill the target will get whatever they want. As one of the assassins, Tokaku Azuma joins Class Black and begins to size up the competition.
Starring Ayaka Suwa, Hisako Kanemoto, Yumi Uchiyama