The Hidden Dragon Returns to the City

(This story doesn't involve a daughter being abused and seeking help. One heroine, no harem, and the protagonist won't start out strong only to become useless later! His identity will be revealed soon. He's decisive and ruthless, and never lets a grudge go unanswered!)

Chen Xun is an heir to a wealthy family and a legendary God of War in the Southern Territories. He commands countless fierce generals, and one word from him can shake the earth.

When he hears that the woman he loves is in trouble, he's willing to cast aside his honors and give up his billions to retreat with her into ordinary city life, where they can live peacefully and let him try to become just an ordinary man.

But the grudges of the underworld keep him from enjoying a peaceful life. If he can't put up with it, then he'll fight! When the Hidden Dragon emerges, the king returns, and the whole world trembles!

(Urban + God of War + no System + one heroine + decisive and ruthless + devoted solely to the heroine + power fantasy)