Hakuto "The Phantom" Kirishima is one of the four Shishigami who serve directly under Ouken Yamato. He initially poses as a botanist when the Maken-Ki gang look for a flower to help Haruko recover from her element instability, revealing himself when he attempts to attack Kuuna.


Hakuto has the ability to manipulate sound, including the ability to move faster than it. This ability was gained from drugs taken containing Ouken's blood, and transformed Hakuto into a monster (although he believes he has become stunning beautiful).