The Protagonist's Natural Enemy in a City Power Fantasy

After retiring from the Reincarnation Space, Lu Xiu gave up all his powers and moved to an urban world to enjoy his retirement. All he wanted was a quiet, ordinary life as an ordinary person. But this world was anything but ordinary. War gods, special forces kings, live-in sons-in-law, immortal doctors: you never knew when some guy who seemed like a protagonist would suddenly show up. And the women in this world were every bit as dangerous as femme fatales. Still, no one was going to disturb Lu Xiu's peaceful life. And if someone really didn't know when to quit? “I am your natural enemy!”