Standby

Taiki is the state of a woman being at work and waiting for a booking or for a customer to be assigned. At store-based venues she waits in the venue's waiting room; with delivery health, at a waiting room the service keeps; when a job comes in she goes to the room or the hotel. A woman shown as on standby or immediately available on a venue's shift list can be seen at that moment without a reservation.

At a soapland, choosing from the women on standby once you arrive, or leaving it to staff, is what free means. Standby displays change by the minute, so if you want to use a venue the same day, check the display and contact them early.