This is Mei, a dark type Psychinu.
Despite having the body of a woman, the voice is clearly male. I guess you could compare it to Gaara's voice from Naruto. He technically isn't male or female but identifies with being referred to as 'he'. Another fact about his race (Psychinu= Psychic Inu) is that they have the ability to shape shift (which most of them don't utilize), so he most likely is in this body just to throw people off. He hardly ever talks and mostly gets his point across with growls and other mannerisms of a dog and mostly keeps to himself, not letting his presence known unless he's either called on or sought out.
He's the only Psychinu that's one of the original, making him to be about 5000+ years old. When a Psychinu dies, a chosen Psywoof of the same type evolves in order to take its place, however, whenever Mei's body so happens to get destroyed, his spirit is transferred over to the next dark Psywoof, and he gets to retain his original self, making him, in a sense, eternal. He has never been in an intimate relationship with anyone and, due to some things that happened in the past, will not let anyone get close to him. None of the current Psychinu have seen his face, so they have no idea what he looks like. At times, he can become easily annoyed and will voice his displeasure by either low warning growls, swatting them away, or leaving altogether.
Of the original 16, Mei was considered the strongest and would have become the leader had he not given the title over to the second strongest; he felt that he wasn't good leader material. His power has only continued to grow since then, but he hardly ever makes use of it, instead opting to let the others handle things while he observes from the sidelines. This causes many to question what his actual purpose is because he hardly ever participates in anything and rarely, if ever, gives his opinion on anything, leading many to also believe that he's useless. Also, because of the unnatural aura that he emits, most tend to shy away from him.
As stated before, Mei has power, but he doesn't use it, and because of an incident resulting in the total destruction of several landscapes and several large islands being wiped off the map, he's put restrictions on his own power lest his temper dangerously flares unexpectedly again. If the situation calls for it and there's no other way, he will lift the restrictions off himself and use his power and won't stop until the target has been completely obliterated. In his long life, he's only had to utilize his power a total of eight times. Because his power is so immense, he tries using it the least amount of times possible. Although he has near perfect control over it now that he's had time to master it, he does not want a repeat of what happened thousands of years ago should his temper and emotions get the better of him again. Mei is also excellent at hand-to-hand combat, but again, he hardly puts his skills to good use.
Mei is 6'8", making him the tallest of the current Psychinu and, having 5000+ years experience, he's also the wisest of the group, but he hardly ever shares his wisdom with anyone unless he thinks it's worth his time.
