Aoi (あおい) is a villainess from the 2009 manga Dokugan Ryuukai. Aoi is a beautiful young girl with long black hair and large breasts. She enters the story as an attender of the Date clan princess Megohime, but secretly she is one of deep-cover ninja spies of the enemy Souma clan.
When her real identity is uncovered by Masamune, who slashes her kimono to reveal a ninja outfit underneath, the overconfident Aoi attempts to attack the heroes with her hand claws. But the spy is killed within mere seconds when one of them, Katakura Kagetsuna, effortlessly skewers her on his spear with a nonchalant smile.