Tsukiko was a human Mystic Theurge who was imprisoned in the Azure City jail for "unnatural acts of wizardry". She was released by Hinjo in order to assist in The Battle of Azure City, but switched sides during the battle. She was the leader of a group of wights known as "The Black Squadron". She treated her undead like children or babies and always tried to protect them and keep them safe, by doing things like giving them safety whistles. While new to the group, she was the only member 100% loyal to Xykon with no apparent ulterior motive. She disliked Redcloak and the feeling was mutual. She also tried flirting with Xykon: "I mean, I really LOVE the undead"*wink*