Blade Hidden in the Abyss

At the age of seven, his father was murdered and his entire family was convicted. The murderer was a powerful court minister? A martial arts master? Or... his closest kin? At twenty-three, he returned to the imperial capital with a system called 'Moyuan'. This system contained the thousand-year wisdom of the Hundred Schools of Thought, but each use cost him years of his life. He used it to solve strange cases, slay corrupt officials, and stabilize the realm. But he didn't know that the creator of this system was waiting for him to step into the abyss. He vowed to end the chaos and bring peace to the people. Thus, the powerful saw him as a thorn in their side, the martial world saw him as a troublemaker, and enemy states saw him as their greatest foe. Brothers betrayed him, his beloved took an arrow for him, and his subordinates died for him. In the final battle, his three thousand Mo-armored soldiers were completely annihilated. Holding his dead wife's body, his hair turned white overnight. He finally unified the ten kingdoms. The new emperor asked what reward he wanted. He said, 'I just want to go home and farm.' Then he walked into the wind and snow with his five wives. You think the story ends there? No. Because the most terrifying enemy never truly died. Because the greatest secret still lay buried under his mother's tombstone. Because the war thirty years after his retirement was his true destiny. The abyss is deep, the blade hidden within. A mind full of wisdom, revealing nothing.