Super Galaxy Explodes and Stays in Shelter

The end of the world is never disordered madness, but the deep desire for order deep in the heart. Supernova radiation swept across the earth, turning the bustling city into a dead wasteland overnight. Ji Zha, an ordinary IT otaku, was accidentally bound to the doomsday shelter system and was hiding underground in the thousand-year-old capital, building up the last line of defense for mankind layer by layer. From barely surviving to restarting civilization. In this devastated wasteland, his refuge is the only remaining order and hope in the world.