Asagi  

The Blue King

Gunjou, the leader of Blue Kings' special guards, consists of good-looking guys. In reality, Asagi is Emperor's secret offspring and the legitimate Blue King. On behalf of White King, Asagi infiltrates Tataras army with a mission to provoke conflict between him and Red King. Despite being self-centered and disliking manual labor, Asagi excels at sword fighting but lacks physical strength.