Can you recommend some novels where the main character is not invincible?

There were some, such as "Douluo's Odd Martial Soul." The main character was not a saint, nor was he the kind of person with abnormally strong self-esteem. His personality was not perfect. He had a smooth side, but also a side that insisted on himself. There were also some that could even be called quirks. There was also the book,"He actually became the eldest senior brother with a pseudo-spiritual root at the beginning." Although his aptitude was particularly mediocre, he became outstanding through hard work and luck, but he was not invincible. These are all novels that are different from the traditional main characters. They are very interesting. I hope you like this fairy's recommendation. Muah ~😗