Mahiru/Shinya Banba (番場 真昼・真夜) is a former student of the Black class who was in a competition with the other students of that class who is trying to kill Haru Ichinose where the reward is anything what that assassin may want.


However, she didn't want/need anything as a reward, because Mahiru wanted to turn Haru's phone strap into a "relic", which required killing her. She later failed her attempt after Isuke Inukai intervened