History: Who Says the Emperor Isn’t Chosen by Me, a Bandit?

As dynasties rise and fall and the realm descends into chaos, the crown prince rebels, while the emperor is besieged in the capital. Both sides send messages to Blackwind Stronghold at the same time. The crown prince asks Yang Chen to stay out of it, promising a generous reward afterward. The emperor begs for help, promising to make Yang Chen supreme commander of the army!

Whose side should they take?

The bandits of Blackwind Stronghold say, “What crown prince and emperor? They're just remnants of the previous dynasty! Follow me to put down the rebels and help our chief ascend the throne!”

Yang Chen says, “Huh? Who put the imperial robe on me?”