A cage-like box in which Ado does live performances. In real life, it is lit such that the interior appears as only a silhouette to the audience, though in artwork Chando is often fully visible in the box. The front of the box can also be used as a sort of display screen.
The cage is required to prevent Ado from biting audience members.
Examples
First-person view from inside the box, during Shinzou
