Because this is a reallistic manga. The history is alreasy writen.
Yeah, it's semi realistic actually. And I was talking on how I don't see something like that in Chinese manhwas in general. Is it because they sees the rightful heir as "the son of the heaven" I wonder
what are you talking about? It happens at the end of every dynasty. Usually starts of with a 9 bestowments to a recipient, then usurpation of the throne by the recipient right afterward: The Xin dynasty usurped the Han for a brief moment, the Wei usurped the Han, then Jin usurped the Wei, founder of Sui also usurped the throne, I believe and the founder of Song also usurped the throne. "Son of heaven" doesnt mean shit in the end.
Why can't they kill'em all off and usurp the throne??
People support isn't an issue, as truth is written by the victor.