Hizuna

A prototype of the beast known as a gu diao. Compared to his older sister, he has a much more stoic personality and most of the time won't be the one to start a fight. Even when provoked, he won't care most of the time.

In some ways, he's even more dangerous than Yuexi.

Whereas Yuexi is more likely to leave an opponent alive at the end of the battle, he is much more likely to kill them in terrifying ways.