Akuma no Riddle: Riddle Story of Devil Vol. 3 (manga)

So far, Haru Ichinose has managed to survive. Tokaku Azuma has continued to act as her loyal guardian, having thwarted several assassination attempts on the girl's life. This means Haru has lasted long enough to take part in the school play, along with her assassin classmates. Working on the play will bring all the girls closer, for better or worse. Secrets will be revealed, lines will be crossed, and the stakes against Haru's life will be higher than ever. How can Haru possibly survive this latest theater of war?