I'm a Live-In Son-in-Law, Yet Always Three Realms Above My Wife

[Invincible] + [Multiple heroines] + [Character development] + [Always three realms above the heroine] Chen Fan transmigrates into the Great Zhou Dynasty, where he becomes a discarded son of the Chen family and is forced to marry into the crumbling Northern Prince's residence. On his wedding day, the Second Prince arrives with an imperial decree. Not only does he intend to strip the Northern Prince of his military authority, he also plans to humiliate Chen Fan's new bride, Xiao Ruohan, in front of everyone. Everyone is waiting to laugh at the son-in-law. Unexpectedly, Chen Fan awakens the “Three Levels Above Everyone System”! As long as he binds himself to a family member, his realm, cultivation techniques, and martial skills will always be three levels higher than theirs! The bad news: the System says he has no family. The good news: his new wife is a peerless prodigy who reached the peak of the sixth rank at a young age. When a fourth-rank retainer attacks his wife, Chen Fan needs only one move. The retainer dies on the spot, and the Second Prince flees the residence in disgrace! On their wedding night, Xiao Ruohan sits shyly at the bedside, only to see Chen Fan pull out a Heaven-grade cultivation technique, top-grade pills, and a spirit-gathering jade bed. “Husband, tonight is our wedding night...” Chen Fan puts the cultivation technique in her hands, his expression utterly serious. “I know. That's why you need to hurry up and cultivate.” From then on, his aloof, proud wife, a peerless female emperor, a demonic sect enchantress... The harder they cultivate, the more absurdly powerful Chen Fan becomes. The female emperor says, “Why is it that every time I break through, you're still three realms above me?” Xiao Ruohan asks, “Did you marry me just to make me cultivate?” Years later, the Great Zhou Emperor becomes a Martial Saint and sets out to subdue the world. The entire court is...