
Jackalope ジャッカロープ
A hare with horns. This cryptid is said to inhabit Wyoming, America, but, for some reason, he is instead guarding the prison alongside Es. Functions as the guide for “Milgram” and exists to teach Es about the prison, their job as the guard and so on.
His human speech reveals a jocular and talkative personality. However, it seems that only Es can hear his voice.