Hokuto is a very special and strong Shikabane and she is the leader of the Seven Stars.
Most Shikabane are born from either Nature or Regrets in their lives. Hokuto had neither of these.
She was raised as a human sacrifice so she never had any interactions with people her entire life. The first interaction she had was someone killing her. After she died she came back to life as a Shikabane and killed everyone in site.
Hokuto is the strongest Shikabane. She has tremendous strength and is able to fling people across a room with just a swipe of her arm. She once nearly broke Akasha's arm just by swiping at it. She is especially dangerous since she has the mind of a young child which makes her curious about everything, but she interacts with things the only way she knows how, by killing it.
Hokuto is later turned into a Shikabane Hime by Akasha and her power becomes even greater and allows her to be controlled by Akasha.