Apocalypse Fortress: I Have a Heart of Embers

When a catastrophic solar flare scorches the Earth, plunging humanity into an endless cycle of extreme heat, brutal winter, and a zombie plague, civilization crumbles overnight. Li Fan dies in this hellish new world—only to awaken in his university days, armed with memories of the future and a mysterious high-tech sphere from an advanced alien civilization. Given a second chance, will he become the ruthless survivor who hoards resources and crushes enemies without mercy? Or will he find redemption in the ashes of the old world? In the apocalypse, morality is a luxury no one can afford.