I recommend the following two novels to you: The Strongest Special Bodyguard and The Goddess 'Super Soldier King. Both novels were about urban life, the main character was Ye Feng, one was a special bodyguard, the other was a special ability soldier king. They were all retired soldiers who returned to the city to carry out various difficult adventures, protect the heroine, and uphold justice. I hope you like this fairy's recommendation. Muah ~๐