Ao Haidong is one of the playable heroes from Hero of Robots. He is the pilot of the Azure, later Sacred Lord.
Ao Haidong has sometimes poor social skills. He is nerdy and lonely; because he does not fight friends.
This mysterious youth has a dragon design that extends from his face to his chest. Though he is a loner and problem student at school, he does not bully weaker kids.
- Mecha: Azure
- Faction: Aiya National Union
- Jassky is one of Ao's friends. She is well intelligent and mindful.
- Barr is one of Ao's friends. He is good in repairing damages. Sometimes, he and Barr are rivals.
- Gajill is a friend, who a sidekick to Ao. Gajill is frielndly to tease him.
- Addisso is Ao's friend.
- Hero of Robots New Generation Version 4 (playable debut)
- His Mecha is based on Azure Dragon from Chinese Mythology.