There are seven young ladies that called themselves the place-owner and venue owners of a mansion they redesigned to be garner customers. They perform and please their customers with their arts and appeals that were never seen before. Mysteries surround them and their mansion, and countless people try to uncover them. Like their arts and appeals, the ladies would like to stay silent about themselves. However, every mystery might unfold as they find themselves increasingly involved with people after promising not to get attached to anyone.