Jiang Mubai's doting love for Jiang Ning is no less than the love of her own father.
When Jiang Ning was three years old, she got lost because she was attracted by the smell of a pig's trotter. Jiang Mubai was filled with guilt, and after a fruitless search for several years, he was unable to face his brother and his mentally broken sister-in-law. He volunteered to go to the border to defend the city.
He stayed away for many years, only returning occasionally during festivals.
It was from that time on, the rumors of the two Jiang brothers not getting along had spread.
As time went on, it only got worse, sometimes even breaking out into a fight in front of the Emperor.
After Jiang Ning returned, Jiang Mubai learned the news and longed to return home. But after all, he was the general guarding the nation's gate, and without the Emperor's Imperial Edict, he could not return at will.
This time he returned, he was late in leaving again.