Nirvana in Fire Vol 2

No war is merciful. But even the battlefield won't treat you with such treachery as the walls of the imperial palace. As the princes struggle for power, anyone can become a bargaining chip: a commoner, an official, and even a princess from the southern borders. Mei Changsu must abandon his former friendship and put other people's destinies at stake in order to protect his country from imminent destruction. Is his choice dictated by a sense of duty or his heart's desires?