Keeping a Low Profile in the Empress's Palace, I'm Invincible!

Ye Chen is reborn on the Jiuxiao Continent, where the peerless Empress Luo Hongyan is choosing her consort. He has a sign-in System, but signing in at ordinary places yields poor rewards. After more than twenty years of struggling, he is chosen as the empress’s consort! Signing in at the imperial palace sends his fortunes soaring! “The consort is great in every way, but his strength is a little lacking.” “That’s right. He’s only at the Houtian level!” Years later, when he hears the palace maids gossiping, Ye Chen just smiles without a word. He is already invincible! ...One day, foreign enemies invade. A thousand top experts surround the palace, and the dynasty faces total destruction. “If you want to kill my wife, you’ll have to get past the Xuanyuan Sword in my hand first!” The sword rings out, and the whole world is stunned!