There are five kinds of humans. One kind is the kind that is neutral. Those people are just normal, they dont have a spin to their life like the other four. They can live without any worries. The first special kind is air. Their emperor is Liu Yixing. His son, Liu Yiyun is the next emperor. He has been training since he was 3 years old. The second kind is water, their emperor is Jung Yunho. His daughters Jung Soojung and Jung Sooyeon are the next emperors. Theyve been training since they were little so they could handle everything. Kwon Jiyong is the emperor of the fire part, he has two sons called Kwon Yuri and Kwon Hyoyeon. The last one are the Kim's, Kim Ryeowook is the leader of the earth part. He has a son and a daughter named Kim Taecyeon and Kim Yongjoo. They are enemies since 100 years ago. A war came because the emperors of each kind wanted to be the big emperor who leads them all.

Will there come peace one day because of this princes and princesses?

Or will they continue the war for their parents?