Gambling battle royal begins as sisters and their spouses vie for the heirship!
Akira Kurokawa, the president of the Kurokawa Group, the largest amusement company in Japan, has given his nine daughters the condition of successors: the one who brings the most excellent "son-in-law" with him. The most talented son-in-law is the one who is the most "playful". The ninth daughter, Claire Kurokawa, pretends that Sou Shirahagi, a skilled gambler, is her husband, and together they challenge gambling with their lives on the line!