Blue Light Dimension

Rabbit Hole Dimension (兎口の時空間, Usagi Kuchi no Jikūkan) is an alternate space is linked to Kyouji Otonashi's Through the Rabbit Hole Technique and was originally inaccessible prior to his mastery of the technique. Due to the nature of the technique, he is currently the only person allowed to enter or exit the void, and as a result anyone placed within its boundaries is virtually trapped until he chooses to release them.

Using this to a high degree, he is able store active techniques leaving them in stasis with their momentum and power active until released. Kyouji is also able to open small wormholes, and use them to transport his Wire Stringed Kunai and Bells which are used to lace an area with his Illusionary Bells: Cicada Swarm technique in order to hide his location and trigger his Genjutsu from a distance.