The eldest of four sisters, Ichika helped her working parents with household chores and used this skill to become a dispatched staff member for a home service agency. Tamawheel was the first client to request Ichika after she joined the company, and has since been regularly requesting her services as a valued customer. However, Tamawheel's true intention was not housework but her body. "Is she your next target?" said Oshima, who had come disguised as a visitor, was a bondage enthusiast.
