Tsukiko Aido

 Tsukiko Aido (藍堂 月子, Aidou Tsukiko) is the daughter of Lord Aido. Her younger brother is Hanabusa Aido, which makes her Akatsuki Kain's cousin as well. Little is known about her. She is a Level B Aristocrat Vampire, but not a student of the Cross Academy.

Character outline
Tsukiko has blonde hair which is just a bit longer than her shoulders. Her eyes are light blue, just like Hanabusa's and her father's. She first appeared when her father wanted to introduce her to Kaname Kuran, though Aido's father wished Kaname to consider her as a prospective bride but Hanabusa Aido objects.

Story Appearances
* 25th Night
 * Side Story - Master Kaname and me, just before the Night Class was established.
 * 48th Night

Trivia

 * Tsukiko means "moon child" since it is a combination of "tsuki" (which means "moon" or "full moon") and "ko" (which is a suffix and means "child (of)").
 * "Aido" means "indigo temple"