Reincarnated as an Unlucky NPC: My Wife's Got My Back

Demon Lord Lin Tianhong has ruled the Demon Realm in solitude for over ten thousand years until fate finally grants him a chance at love. Just as he begins to savor his newfound happiness, a shocking revelation shakes his world: his beloved wife is the reincarnation of Empress Xihe, the Central Heavenly Empress he defeated in a legendary battle millennia ago! Now, he must conceal his true identity from her, all while navigating the delicate balance of love and past enmity. Will he be able to protect their love, or will the secrets of their past tear them apart?