Responses
Spoiler
I think I got it. Since a citizen from xianle killed everyone else, he left the emperor alive so that the emperor would kick-start a war. But MC killed the emperor to leave no witnesses. Then later he found Ah Le and heard about Ah Les plans for war, and killed An Le to prevent his plans. Keeping the safety of everyone. I think. So the emperor just had to die as the last witness to stop the potential war...
Spoiler question
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I don't get it, why did MC kill the emperor? I understand why he killed An Le, but why also the emperor? Can someone explain please?