Pandora's Box

Pandora's box is a box  located in a room  inside the Shibuya Mansion. The key given by Hotomi to Sakura can open the door to the room, and it is closely guarded by Inoichi the mechanical doll. Shibuya was shown to have extreme apprehension at the Code:Breakers entering the room because the room is supposed to hold the key to becoming the strongest power user. An example of someone who has unlocked this power is Toki. It can also be said that haruto got his power from the box.