|Japanese name:||藍堂 英|
A noble-class vampire who can conjure and control ice, Aido often appears cheerful and friendly one moment, but vindictive and cruel the next. A perceptive individual, he figures out Zero is a vampire, but he keeps this information to himself without any hidden agenda in mind.
Rido's attackDuring Rido's attack on Cross Academy, Aido protects the Day Class, as ordered by Yuki. Half a year after the incident, Aido becomes Yuki's tutor and personal guard. Recently, he is seen following Yuki around on her mission, after he is left behind by Kaname and Yuki, he is arrested by Zero and brought to the Association's headquarters for questioning regarding Sara Shirabuki's behavior and Kaname's unwillingness to do anything about it.
Voiced by: Jun Fukuyama (Japanese), Bryce Papenbrook (English)