Kai Kai Xin Xin, means double happiness. They are two pandas in Macau. As ''Kai Kai Xin Xin 1.0'' passed away, ''Kai Kai Xin Xin 2.0'' has already replaced their position. Although ''Kai Kai Xin Xin 1.0'' has been replaced, the seeking of being pure and wonderful stays eternally unchanged in kids' hearts. As a symbolic valuable gift from China to Macau, they undoubtedly opened Macau kids' unlimited imagination to this rare animal, panda:''Where did Kai Kai and Xin Xin come from?''''Would Kai Kai and Xin Xin miss their Dad and Mum?''''Can Kai Kai and Xin Xin speak Cantonese?'''' Do Kai Kai and Xin Xin have a birthday party?''''Are Kai Kai and Xin Xin happy in Macau?'' Let's enter this book and read their lovely stories together!