Zhou Qing transmigrates to become the fifth prince of Great Qi.
Powerless and without influence, he enjoys himself at the pleasure quarters, listening to music, and plays the good-for-nothing to avoid the deadly struggle for the throne.
A love letter from a princess of Great Qin gets him framed by the third prince for colluding with Qin.
Just as he is about to be thrown in prison, a Great Qin envoy arrives to propose a marriage.
The envoy names Zhou Qing as Great Qin's live-in son-in-law and threatens to flatten Great Qi if they dare slight him.
In an instant, Zhou Qing goes from the most useless prince to an arrogant son-in-law.
The Emperor of Great Qi also makes a complete change of heart and starts showing Zhou Qing an extraordinary amount of concern.
His royal brothers are full of admiration, too.
"Fifth Brother, I wronged you. I could never match your courage in marrying that fat princess of Great Qin for the sake of Great Qi!"
Zhou Qing is stunned. "What? The princess of Great Qin weighs 300 jin?"
