|Although this article is based on canonical information, the actual name of this subject is conjectural.|
Aiko was the Tokyo cell leader until her assassination by Toru’s pack. Upon their arrival, the castle received Buffy Summers, Willow Rosenberg, Satsu, Leah, Rowena, Xander Harris, Renee, Dracula, and a group of Slayers from Scotland headquarters, in their battle against Toru’s pack to recover the Scythe.
After Renee was assassinated, her ashes were spread in the castle. Buffy promoted Satsu as cell leader, and the two spent their second night together before her departure.