Hanabusa Aido

Hanabusa Aido (藍堂 英, Aidō Hanabusa?), nicknamed "Idol" by the Day Class girls, he along with his cousin Kain, Aido is known among the Night Class as "Kaname-sama's right hand" and has a fierce admiration for Kaname that borders on zealousness. Aido is a noble-class vampire and possesses the ability to conjure and control ice.

Personality
Though he appears cheerful and friendly one moment, he can quickly become vindictive and cruel the next. Though loyal to Kaname, he has a tendency to overstep his boundaries, which results in Kaname punishing him if discovered. Aido figured out Zero is a vampire, though he keeps this information to himself without any hidden agenda.

Background
Aido is not overtly fond of Yuki and dislikes the attention that Kaname gives her. He is temporarily troubled when he witnesses Kaname's killing of a fellow pureblood and runs away from the Moon Dormitory and imposes himself on Yuki and Zero. Agreeing with Yuki's assertion that he would remain loyal to Kaname even if betrayed by Kaname, he returns to the vampire's side. Aido has difficulty adjusting himself to referring to Yuki in a formal manner following the revelation of her true nature when he is appointed as one of her protectors.

Plot Summary
At one point, while Yuki dealt with two day class girls (one of whom was bleeding) who violated the nighttime curfew, he and Kain suddenly appear and Yuki becomes alert. Yuki was afraid of what they might do to those girls but Aido tells her that they came especially to see Yuki. Yuki swung down from a tree and scraped open her hands, and the scent of her blood attracted them. Aido licks the blood off her hand. Luckily, the two girls fainted and were taken to the chairman to have their memories modified.

Currently Aido joins the night class in protecting the day class students.