Name: Mizuki Kuran
Mizuki is the older twin sister of Yuki Cross and sister to the Pureblood Kaname Kuran.
Mizuki and Yuki are twins, but Mizuki has clean messy hair and her eyes are darker, like Haruka and Kaname.
In the beginning of the story, Mizuki dress up as a guy at Cross Academy and only the people in the Night Class/Kaien Cross know her true identity.
As the story process, Mizuki begins to wear female clothes and reveal her figure.