Kai has an aloof nature, often quiet, even during intense discussions and accusations. Because of his quiet nature, he isn't considered to be much of a person of interest to the group. Though like the others, he makes it apparent that he wishes to try his best to contribute to their advancement, even if his withdrawn demeanor and weird aura puts Sara at unease. 

Kai's voice is quite monotone and usually stays calm. His range is medium to medium-low.