Having neither nature or attachment, Hokuto reigns rule over the shichisei (Seven Stars) as the strongest shikabane.
It was later known that the shichiseis (Seven Stars) wanted to activate Hokuto's powers without any sacrifice so got Makina to teach Hokuto's role: Makina's enemy. In the process, it is revealed that Hokuto was once a human sacrifice not knowing anything of the world; thus, her way of understanding things is to destroy it. She was born to be killed, and thus, there was no reason for her death nor her revival, making her the most powerful and deadliest tool among the antagonists.
She eventually became the betrayer monks shikabane hime after destroying the being providing en for all the shikabane hime. Desperate and depressed of his former shikabane's death and the organizations' deception toward the monks, they work toward destroying shikabane.