The eldest of four siblings. Ichika helps out her working parents with the housework, and now uses her special skills to work as a temporary staff member for a housekeeping service. Tamawa was the first customer to request Ichika when she had just joined the company, and has been a regular customer who has requested Ichika on a regular basis ever since. However, Tamawa's goal is not the housework, but her body. "Is she your next target?" Oshima, a bondage enthusiast, comes to visit disguised as a visitor.