I recommend the following two novels to you, both of which meet the requirements of the topic you need: 1. "The City of Rebirth, Supreme Primogenitor": The main character, Chen Yu, self-destructed and died after a great battle. However, he was reborn into his third year of high school. From then on, he pretended to be a pig to eat a tiger and became awesome all the way to the peak. In this life, there were no regrets, only brilliance. In this life, there was no forbearance, only invincibility. It meets the requirement that the protagonist is invincible from the beginning. 2. The protagonist, Xiao Junlin, was an invincible existence from the beginning. He was a powerful protagonist who would kill anyone who refused to obey him. This book also meets your requirements. I hope you like my recommendation, Mwah ~😗