According to your needs, I recommend the following novels to you: " Reverse Love Game "," The King of Campus Flower Guards ", and " First Class Palace Maid ". Among them," Reverse Love Game " was a light novel, with the male protagonist being a character with invincible defense;" The King of the Campus Guards " was an urban supernatural novel, with the male protagonist being the return of the king of soldiers, invincible;" First Class Palace Maid " was an ancient romance novel, with the female protagonist taking the position of a concubine step by step in the harem. The above is my personal recommendation. I sincerely hope that you will like it.π~