freeOK概要：Kuad and Kai are brothers and sisters and have separated since childhood. Kuad grew up in a slum and made a living by gambling, while Kai was with his grandmother. When an accident caused his grandmother to faint and needed more money for treatment, Kai began searching for his brother Kuad. When brothers and sisters reunited and took the chance to get money for grandma in the casino, things changed dramatically.
