Lord of All People: Get the Hero System at the Beginning, I Will Kill All Races!

Just as he traveled to another world, he was faced with a trial for newcomers. If you don't pass, you will be eliminated. Yes, it is death. Too old... This is not a trial for newbies, it is clearly a trial from hell. The trial lasts for five days, and those who pass will receive trial rewards. Become an eternally youthful lord and enjoy eternal life... Zhang Xiao was desperate. He was a pitiful human with soldiers as brittle as paper. He was no match for the trial monster. But at this moment, my dear system came! Bite! The hero system has been activated! Please enjoy building your army of heroes! Don't tell me! Am I the protagonist?