The series' most prominent villain, Alphard is an attractive young woman who is both the leader of a terrorist organization called Snake (蛇 Hebi?), which is responsible for both the Shibuya and Shanghai terrorist attacks and Canaan's arch-enemy. Once Siam's apprentice and known as Canaan, she has since thrown away the identity and adopted her current name. Prior to the events of 428: Fūsa Sareta Shibuya de, Alphard, Siam and Canaan were hired to hijack an armored military train containing the Ua virus. During the assignment Alphard betrayed her teammates when it was revealed their client ordered her to kill all witnesses, including them. She shot Siam and left him to die while escaping with the virus. She appears easily capable of taking down Canaan even though the latter uses her synesthesia, reasoning that she is no longer manipulated by feelings (unlike Canaan). She carries a FN Five-seveN USG 5.7 mm pistol as a sidearm. On her upper left arm, a strange tattoo is worn, and it possibly is a half of a whole picture of a tattoo if combined with the tattoo on Canaan's arm. However, she amputated this arm during her final battle with Canaan, later coming to be known as "the one-armed woman".