Meteor disaster strikes, plunging the world into eternal night and severe cold. Ding Yuxuan was reborn and returned to the three days before the doomsday outbreak, and was bound to the "Doomsday Base System". In this life, he no longer tolerates complacency and vows to build the strongest fortress to take in those who are worthy of protection. While others were shivering in the ice cave, his base was brightly lit and warm as spring. However, the female doctor he rescued seemed to be hiding a shocking secret.
