This bodyguard is too invincible

by Ranked among the gods

Lin Shuang, just a bar waiter, started off by bullying a billionaire heiress. What to do? He was in such a panic! She investigated him every day. And there were hordes of rich rivals threatening him… If this continued, he genuinely feared his identity as the leader of the Netherworld Army would be exposed… — Description from novelcodex.org