Proportion Diversification

Arai much like his clan members, has the natural ability to reduce himself in size, down to the dimensions of a small lizard or insects, roughly quarter of an inch in height. He usually chooses not to retain his standard density while at this reduced mass, but can choose to do so at will. The "lost" mass is shunted to a pocket dimension for later retrieval. Additionally, his strength was boosted while she is at reduced size, to the extent that he can bend a one-inch diameter steel bar almost double. His size allows him to be easily unnoticed in most cases, allowing him to become stealthy in some cases.

In addition to being able to shrink, Arai can grow significantly in size as well. The growth process requires the rapid acquisition of bodily mass, presumably from an extra-dimensional source. This extra-dimensional mass fortifies all of his cellular tissues, including his bones and muscles, enabling him to support him increased weight, and giving him enhanced strength and durability. While how this exactly happens remains to be a mystery but it has been confirmed to be a technique derived from Shape-shifting