The Heroic Live-In Son-in-Law

Orphaned when his parents died, he grew up relying on his grandfather. Three years ago, to fulfill his grandfather's last wish, he came alone to an unfamiliar city. Keeping his promise to his grandfather, he married the eldest daughter of the prestigious Li family of Jianghai, becoming a kept man in everyone's eyes and enduring their disdain...

I gave her three years of sincere devotion, but it was all for nothing. From now on, I'll live freely in this world, and you and I will have nothing more to do with each other...