Following his demise, Duan Fei finds himself transported back two decades to the pivotal moments preceding a devastating viral outbreak. Armed with hindsight, he aims to rectify the remorse he carried for those lost years. Leveraging his past life's wisdom, he readies himself for the impending apocalypse, aided by his newfound 'Evolutionary Tree' empowering his growth. Once a mere survivor, Duan Fei now stands poised to emerge as the world's champion and savior in this new existence.