Vampire knight season 3 (Kaien's pureblood vampire sister)

Kaien Cross has a pureblood vampire sister named Mieko Toshiko.
She is kind and beautiful.
But She is scary when she gets angry.

Her name has meanings:
Mieko means: blessed beautiful child.
Toshiko means: clever child.

She moved to cross academy to help kaien,
She is the second headmaster of the school..
And also protecting humans from vampires and also a teacher..

What will be her life there look like??
Note: this is the season 3 after the guilty.
And this is only my story i only made this!!