The Strongest Immortal Son-in-Law

Su Ming has lived for billions of years, watching everyone around him pass away. A thousand years ago, the woman he loved most reached the end of her lifespan. After she was reborn, Su Ming went completely mad.

He spent a thousand years searching for his beloved from a thousand years ago, living like a fool for three years and becoming a live-in son-in-law, all for the chance to find her.