River of Stars

Ren Daiyan was still just a boy when he took the lives of seven men while guarding an imperial magistrate of Kitai. That moment on a lonely road changed his entire life in entirely unexpected ways, sending him into the forests of Kitai among the outlaws. From there he emerges years later - and his life changes again, dramatically, as he circles toward the court and the emperor while war approaches Kitai from the north.

Synopsis from Open Library.