After dying in his former life, Lance Darner unexpectedly reincarnated back to 20 years ago, just a few hours before the outbreak of a virus catastrophe. He can finally make amends for what he has regretted for 20 years. Using the knowledge he accrued in his former life, he is now equipped to better arm himself in this world. Lance, who now possesses the Evolutionary Tree, is continuously enhancing his power. As someone who only barely survived in his former life, he has become a world hero in this life.