A High-Martial-World Live-In Son-in-Law: Bound to the Heaven's Mandate System from the Start

"A live-in son-in-law used the System to predict the stock market and make three hundred million, only to have a reborn live-in son-in-law cut in and short the market! At an ancient martial arts auction, he deliberately chipped a fake jade vase to stir up controversy, while secretly using his deductions to identify the alien embryo in the grand finale's chamber. But just as he thought he had everything under control, the System flashed red: 'Final task: Kill Shen Qingyue, or be erased by the backlash of the Heavenly Dao!' It turned out that what he had bound himself to wasn't a golden finger, but a 'Civilization Screening Device' left behind by the first Host..."