Super Stay-home Dad

*He had disappeared five years ago, and at that time, he was still the good-for-nothing and a pretty boy in everyone's eyes.
Five years later, he had returned as the King, Even thought he still was the trash in the eyes of his wife...
But in the eyes of outsiders, he was like the dragon of this city.
Who is he? As the king why he willing to live here in seclusion？