The Son-in-Law Soldier King of the City

He is a peerless soldier and a Reaper assassin. To repay the debt of saving his life and protect the woman he loves, he returns to the city and uses everything at his disposal to become a business magnate. He sends anyone who provokes him flying with a single slap and kills any evil spirit with one strike, standing tall at the pinnacle of the city. A friendly warning: anyone who comes looking for trouble will be crushed without exception...