The doomsday arrives suddenly, global order collapses in an instant, and Jiangcheng University is ruthlessly swallowed by a tide of corpses. Ordinary student Su Hao awakens a god-level choice system in absolute desperation, embarking on a journey of doomsday evolution. Relying on continuous choices to acquire alloy broadswords, genetic potions, spatial abilities, and other opportunities, he rapidly transforms, and rallies Han Jiangxue, Xu Qing, and Xi Xi to form an elite squad. Together, they sweep through ruins, scavenge supplies, and retrofit heavy monster trucks to survive with great difficulty. As the ability rain falls, the world welcomes a comprehensive evolution; mutated beasts, high-tier zombies arrive one after another, giant pythons, fierce tigers and other formidable enemies emerge, and an even greater crisis quietly approaches.