The Immortal Emperor Son-in-Law Awakens and Becomes a Wife-Protecting Devotee

He was once the greatest Immortal Emperor of all time, but fell in love and met his end. Reborn in the modern world, he finds himself the son-in-law everyone despises. His wife is beautiful but treats him with icy disdain, his mother-in-law is sharp-tongued, and his relatives sneer at him. The moment his memories awaken, the whole world will tremble before him! In his previous life, you protected me for a time. In this life, I'll protect you forever. Those who bully and humiliate me will pay a hundredfold!