Lan Guier opened a winery. It looked like a winery on the surface, but in fact it was a secret place that could not be disclosed to the outside world. Only rich and powerful ladies are admitted; there are all kinds of handsome men inside. Lan Guier and several sisters were taking care of it, and all the secrets collected by these four people were recorded in the book. Until the end, they have to find the secrets and unravel them one by one.
